DLL load failed while importing: An Application Control policy has blocked this file

[david.pueyo.castillo@…]

The following bug report has been submitted:
Platform:        Windows-10-10.0.26200
ChimeraX Version: 1.12rc202606031852 (2026-06-03 18:52:53 UTC)
Description
Replace this text with list of actions that caused this problem to occur

Log:
Startup Errors  
---  
error | Bundle 'ChimeraX-Alignments' custom initialization failed  
warning | Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 501, in get_module  
m = importlib.import_module(self.package_name)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX
1.12rc202606031852\bin\Lib\importlib\\__init__.py", line 126, in import_module  
return _bootstrap._gcd_import(name[level:], package, level)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import  
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load  
File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked  
File "<frozen importlib._bootstrap>", line 690, in _load_unlocked  
File "<frozen importlib._bootstrap_external>", line 940, in exec_module  
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\\__init__.py", line 25, in <module>  
from .cmd import (get_alignment_sequence, SeqArg, AlignmentArg,
AlignSeqPairArg, SeqRegionArg,  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 355, in <module>  
from chimerax.atomic.seq_support import IdentityDenominator, percent_identity  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\atomic\\__init__.py", line 31, in <module>  
import chimerax.atomic_lib  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\atomic_lib\\__init__.py", line 51, in <module>  
from . import _load_libs  
ImportError: DLL load failed while importing _load_libs: Una directiva de
Control de aplicaciones bloqueó este archivo.  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 386, in init_manager  
api = self._get_api(session.logger)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 520, in _get_api  
m = self.get_module()  
^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 503, in get_module  
raise ToolshedError("Error importing bundle %s's module: %s" % (self.name,
str(e)))  
chimerax.core.toolshed.ToolshedError: Error importing bundle ChimeraX-
Alignments's module: DLL load failed while importing _load_libs: Una directiva
de Control de aplicaciones bloqueó este archivo.  
  
UCSF ChimeraX version: 1.12rc202606031852 (2026-06-03)  
© 2016-2026 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open "C:\Users\dapuc\Downloads\8PIH (1).cif" format mmcif

8PIH (1).cif title:  
Structure of Api m1 in complex with two nanobodies [more info...]  
  
Chain information for 8PIH (1).cif #1  
---  
Chain | Description | UniProt  
A | Phospholipase A2 | PA2_APIME 2-134  
B | nanobody AM1-4 |   
C | nanobdoy AM1-1 |   
  
Non-standard residues in 8PIH (1).cif #1  
---  
CL — chloride ion  
  
57 atoms have alternate locations. Control/examine alternate locations with
Altloc Explorer [start tool...] or the altlocs command.  
2790 atoms have anisotropic B-factors. Depict anisotropic information with
Thermal Ellipsoids [start tool...] or the aniso command.  

> hide #1.1.1 models

> select /B:2-128

1869 atoms, 1887 bonds, 127 residues, 1 model selected  

> color sel orange red

> color sel red

> select /C:2-119

1779 atoms, 1796 bonds, 118 residues, 1 model selected  

> color sel blue

> select add #1

5652 atoms, 5514 bonds, 1 pseudobond, 562 residues, 3 models selected  

> select subtract #1

Nothing selected  

> select add #1

5652 atoms, 5514 bonds, 1 pseudobond, 562 residues, 3 models selected  

> show sel surfaces

> surface style dot

> transparency (#!1 & sel) 80

> select subtract #1

3 models selected  

> select add #1

5652 atoms, 5514 bonds, 1 pseudobond, 562 residues, 3 models selected  

> select subtract #1

3 models selected  

> select add #1

5652 atoms, 5514 bonds, 1 pseudobond, 562 residues, 3 models selected  

> transparency (#!1 & sel) 50

> select subtract #1

3 models selected  

> select /B:2-128

1869 atoms, 1887 bonds, 127 residues, 1 model selected  

> select /B:2-128

1869 atoms, 1887 bonds, 127 residues, 1 model selected  

> select add #1

5652 atoms, 5514 bonds, 1 pseudobond, 562 residues, 4 models selected  

> select subtract #1

3 models selected  

> select /B:2-128

1869 atoms, 1887 bonds, 127 residues, 1 model selected  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 330, in _register_cmd  
api._api_caller.register_command(api, self, ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1404, in register_command  
return cls._get_func(api, "register_command")(ci.name, logger)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\\__init__.py", line 70, in register_command  
cmd.register_seqalign_command(logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 543, in register_seqalign_command  
keyword = [('viewer', Or(BoolArg, SequenceViewerArg(logger.session)))],  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 178, in __init__  
super().__init__(session, "sequence")  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 170, in __init__  
super().__init__(lambda mgr=session.alignments, f=viewer_names, t=viewer_type:
f(mgr, t))  
^^^^^^^^^^^^^^^^^^  
AttributeError: 'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2500, in lazy_register  
deferred.call()  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2428, in call  
return self.proxy()  
^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 320, in cb  
s._register_cmd(ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 332, in _register_cmd  
raise ToolshedError(  
chimerax.core.toolshed.ToolshedError: register_command() failed for command
sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\toolbar\tool.py", line 230, in callback  
bundle_info.run_provider(session, name, session.toolbar,
display_name=display_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 397, in run_provider  
return api._api_caller.run_provider(api, session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1420, in run_provider  
return cls._get_func(api, "run_provider")(session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\\__init__.py", line 66, in run_provider  
shortcuts.run_provider(session, name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1393, in run_provider  
keyboard_shortcuts(session).try_shortcut(name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 403, in try_shortcut  
self.run_shortcut(keys)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 421, in run_shortcut  
sc.run(self.session, status = self._enabled)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 323, in run  
f(shortcut_atoms(s))  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1083, in show_sequence  
run(session, 'sequence chain %s' % seq_chain_spec)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 537, in run  
run_command(session, command, **kw)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 3171, in run  
self._find_command_name(final, used_aliases=_used_aliases)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2891, in _find_command_name  
what.lazy_register(cmd_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
  
See log for complete Python traceback.  
  
FYI: command is replacing existing command: "sequence align"  
FYI: command is replacing existing command: "sequence associate"  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 330, in _register_cmd  
api._api_caller.register_command(api, self, ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1404, in register_command  
return cls._get_func(api, "register_command")(ci.name, logger)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\\__init__.py", line 70, in register_command  
cmd.register_seqalign_command(logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 543, in register_seqalign_command  
keyword = [('viewer', Or(BoolArg, SequenceViewerArg(logger.session)))],  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 178, in __init__  
super().__init__(session, "sequence")  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 170, in __init__  
super().__init__(lambda mgr=session.alignments, f=viewer_names, t=viewer_type:
f(mgr, t))  
^^^^^^^^^^^^^^^^^^  
AttributeError: 'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2500, in lazy_register  
deferred.call()  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2428, in call  
return self.proxy()  
^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 320, in cb  
s._register_cmd(ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 332, in _register_cmd  
raise ToolshedError(  
chimerax.core.toolshed.ToolshedError: register_command() failed for command
sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\toolbar\tool.py", line 230, in callback  
bundle_info.run_provider(session, name, session.toolbar,
display_name=display_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 397, in run_provider  
return api._api_caller.run_provider(api, session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1420, in run_provider  
return cls._get_func(api, "run_provider")(session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\\__init__.py", line 66, in run_provider  
shortcuts.run_provider(session, name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1393, in run_provider  
keyboard_shortcuts(session).try_shortcut(name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 403, in try_shortcut  
self.run_shortcut(keys)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 421, in run_shortcut  
sc.run(self.session, status = self._enabled)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 323, in run  
f(shortcut_atoms(s))  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1083, in show_sequence  
run(session, 'sequence chain %s' % seq_chain_spec)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 537, in run  
run_command(session, command, **kw)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 3171, in run  
self._find_command_name(final, used_aliases=_used_aliases)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2891, in _find_command_name  
what.lazy_register(cmd_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
  
See log for complete Python traceback.  
  
FYI: command is replacing existing command: "sequence align"  
FYI: command is replacing existing command: "sequence associate"  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 330, in _register_cmd  
api._api_caller.register_command(api, self, ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1404, in register_command  
return cls._get_func(api, "register_command")(ci.name, logger)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\\__init__.py", line 70, in register_command  
cmd.register_seqalign_command(logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 543, in register_seqalign_command  
keyword = [('viewer', Or(BoolArg, SequenceViewerArg(logger.session)))],  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 178, in __init__  
super().__init__(session, "sequence")  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\seqalign\cmd.py", line 170, in __init__  
super().__init__(lambda mgr=session.alignments, f=viewer_names, t=viewer_type:
f(mgr, t))  
^^^^^^^^^^^^^^^^^^  
AttributeError: 'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2500, in lazy_register  
deferred.call()  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2428, in call  
return self.proxy()  
^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 320, in cb  
s._register_cmd(ci, logger)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 332, in _register_cmd  
raise ToolshedError(  
chimerax.core.toolshed.ToolshedError: register_command() failed for command
sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments'  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\toolbar\tool.py", line 230, in callback  
bundle_info.run_provider(session, name, session.toolbar,
display_name=display_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\info.py", line 397, in run_provider  
return api._api_caller.run_provider(api, session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\toolshed\\__init__.py", line 1420, in run_provider  
return cls._get_func(api, "run_provider")(session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\\__init__.py", line 66, in run_provider  
shortcuts.run_provider(session, name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1393, in run_provider  
keyboard_shortcuts(session).try_shortcut(name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 403, in try_shortcut  
self.run_shortcut(keys)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 421, in run_shortcut  
sc.run(self.session, status = self._enabled)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 323, in run  
f(shortcut_atoms(s))  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 1083, in show_sequence  
run(session, 'sequence chain %s' % seq_chain_spec)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\shortcuts\shortcuts.py", line 537, in run  
run_command(session, command, **kw)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 3171, in run  
self._find_command_name(final, used_aliases=_used_aliases)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2891, in _find_command_name  
what.lazy_register(cmd_name)  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
RuntimeError: delayed command registration for 'sequence' failed
(register_command() failed for command sequence in bundle ChimeraX-Alignments:  
'Session' object has no attribute 'alignments')  
  
File "C:\Program Files\ChimeraX 1.12rc202606031852\bin\Lib\site-
packages\chimerax\core\commands\cli.py", line 2502, in lazy_register  
raise RuntimeError(  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.0 - Build 31.0.101.2111
OpenGL renderer: Intel(R) UHD Graphics 620
OpenGL vendor: Intel

Python: 3.11.9
Locale: es_ES.cp1252
Qt version: PyQt6 6.10.2, Qt 6.10.0
Qt runtime version: 6.10.2
Qt platform: windows

Manufacturer: HP
Model: HP ENVY Laptop 13-ah0xxx
OS: Microsoft Windows 11 Home (Build 26200.8457)
Memory: 8,416,038,912
MaxProcessMemory: 137,438,953,344
CPU: 8 Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
OSLanguage: es-ES

Installed Packages:
    accessible-pygments: 0.0.5
    aiohappyeyeballs: 2.6.2
    aiohttp: 3.13.4
    aiosignal: 1.4.0
    alabaster: 1.0.0
    annotated-types: 0.7.0
    anyio: 4.13.0
    appdirs: 1.4.4
    asttokens: 3.0.1
    attrs: 26.1.0
    babel: 2.18.0
    beautifulsoup4: 4.13.5
    blockdiag: 3.0.0
    blosc2: 4.4.1
    bs4: 0.0.2
    build: 1.3.0
    certifi: 2026.5.20
    cftime: 1.6.5
    charset-normalizer: 3.4.7
    ChimeraX-AddCharge: 1.5.20
    ChimeraX-AddH: 2.2.8
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.6.2
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 3.2
    ChimeraX-AlphaFold: 1.0.1
    ChimeraX-AltlocExplorer: 1.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Animations: 1.0
    ChimeraX-Aniso: 1.3.2
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.67.1
    ChimeraX-AtomicLibrary: 14.4
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.3
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 3.0.0
    ChimeraX-Boltz: 1.1
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.2
    ChimeraX-BuildStructure: 2.13.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.6.0
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4.1
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.5
    ChimeraX-ChemGroup: 2.0.2
    ChimeraX-Clashes: 2.4
    ChimeraX-Cluster: 1.0
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.8
    ChimeraX-CommandLine: 1.3.1
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.12rc202606031852
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.5
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.4
    ChimeraX-Dicom: 1.2.7
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.2.2
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ESMFold: 1.0
    ChimeraX-FileHistory: 1.0.1
    ChimeraX-FunctionKey: 1.0.1
    ChimeraX-Geometry: 1.3
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.4.1
    ChimeraX-Hbonds: 2.5.3
    ChimeraX-Help: 1.3
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.4
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-KVFinder: 1.8.2
    ChimeraX-Label: 1.5
    ChimeraX-LightingGUI: 1.0
    ChimeraX-ListInfo: 1.3.1
    ChimeraX-Log: 1.2.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.3
    ChimeraX-Map: 1.3
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0.1
    ChimeraX-MapFilter: 2.0.1
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1.1
    ChimeraX-Markers: 1.0.1
    ChimeraX-Mask: 1.0.2
    ChimeraX-MatchAlign: 1.2
    ChimeraX-MatchMaker: 2.4.1
    ChimeraX-MCopy: 1.0
    ChimeraX-MCPServer: 0.2.0
    ChimeraX-MDcrds: 2.19
    ChimeraX-MedicalToolbar: 1.1
    ChimeraX-Meeting: 1.0.1
    ChimeraX-Minimize: 1.3.9
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.16
    ChimeraX-MMTF: 2.2
    ChimeraX-ModelArchive: 1.0
    ChimeraX-Modeller: 1.5.23
    ChimeraX-ModelPanel: 1.6.1
    ChimeraX-ModelSeries: 1.0.1
    ChimeraX-Mol2: 2.0.3
    ChimeraX-Mole: 1.0
    ChimeraX-Morph: 1.0.2
    ChimeraX-MouseModes: 1.2
    ChimeraX-Movie: 1.0.1
    ChimeraX-MutationScores: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nifti: 1.2
    ChimeraX-NMRSTAR: 1.0.2
    ChimeraX-NRRD: 1.2
    ChimeraX-Nucleotides: 2.0.3
    ChimeraX-OpenCommand: 1.15.4
    ChimeraX-OpenFold: 1.0
    ChimeraX-OrthoPick: 1.0.1
    ChimeraX-PDB: 2.7.13
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.5
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1.4
    ChimeraX-ProfileGrids: 1.6
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.8.2
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.3.3
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.2
    ChimeraX-Scenes: 0.3.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.3
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.5.12
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.18
    ChimeraX-Shape: 1.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.2.1
    ChimeraX-ShowSequences: 1.0.3
    ChimeraX-SideView: 1.0.1
    ChimeraX-SimilarStructures: 1.0.1
    ChimeraX-Smiles: 2.1.2
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SNFG: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.19.3
    ChimeraX-STL: 1.0.1
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.2.1
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0.1
    ChimeraX-SwapAA: 2.0.1
    ChimeraX-SwapRes: 2.5.3
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-TaskManager: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.2.4
    ChimeraX-ToolshedUtils: 1.2.4
    ChimeraX-Topography: 1.0
    ChimeraX-ToQuest: 1.0
    ChimeraX-Tug: 1.0.1
    ChimeraX-UI: 1.50.8
    ChimeraX-Umap: 1.0
    ChimeraX-uniprot: 2.3.2
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDock: 1.6.2
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0.1
    ChimeraX-vrml: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0.2
    ChimeraX-WebServices: 1.1.5
    ChimeraX-Zone: 1.0.1
    click: 8.4.1
    colorama: 0.4.6
    comm: 0.2.3
    comtypes: 1.4.11
    contourpy: 1.3.3
    coverage: 7.14.1
    cxservices: 1.2.3
    cycler: 0.12.1
    Cython: 3.2.4
    debugpy: 1.8.21
    decorator: 5.3.1
    docutils: 0.21.2
    executing: 2.2.1
    filelock: 3.19.1
    fonttools: 4.63.0
    frozenlist: 1.8.0
    funcparserlib: 2.0.0a0
    glfw: 2.10.0
    grako: 3.16.5
    h11: 0.16.0
    h5py: 3.16.0
    html2text: 2025.4.15
    httpcore: 1.0.9
    httpx: 0.28.1
    httpx-sse: 0.4.3
    idna: 3.18
    ihm: 2.2
    imagecodecs: 2024.6.1
    imagesize: 2.0.0
    iniconfig: 2.3.0
    ipykernel: 7.1.0
    ipython: 9.9.0
    ipython_pygments_lexers: 1.1.1
    jedi: 0.19.2
    Jinja2: 3.1.6
    jsonschema: 4.26.0
    jsonschema-specifications: 2025.9.1
    jupyter_client: 8.8.0
    jupyter_core: 5.9.1
    kiwisolver: 1.5.0
    line_profiler: 5.0.0
    lxml: 6.0.2
    lz4: 4.3.2
    Markdown: 3.8.2
    MarkupSafe: 3.0.3
    matplotlib: 3.10.7
    matplotlib-inline: 0.2.2
    mcp: 1.18.0
    msgpack: 1.1.1
    multidict: 6.7.1
    narwhals: 2.22.0
    ndindex: 1.10.1
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.14.1
    numpy: 1.26.4
    nvidia-nvjitlink-cu12: 12.9.86
    OpenMM: 8.4.0
    OpenMM-CUDA-12: 8.4.0
    openvr: 1.26.701
    packaging: 25.0
    ParmEd: 4.2.2
    parso: 0.8.7
    pep517: 0.13.1
    pickleshare: 0.7.5
    pillow: 11.3.0
    pip: 25.2
    pkginfo: 1.12.1.2
    platformdirs: 4.10.0
    plotly: 6.8.0
    pluggy: 1.6.0
    prompt_toolkit: 3.0.52
    propcache: 0.5.2
    psutil: 7.0.0
    pure_eval: 0.2.3
    py-cpuinfo: 9.0.0
    pybind11: 3.0.1
    pycollada: 0.8
    pydantic: 2.13.4
    pydantic-settings: 2.14.1
    pydantic_core: 2.46.4
    pydata-sphinx-theme: 0.18.0
    pydicom: 2.4.4
    Pygments: 2.18.0
    pynmrstar: 3.5.1
    pynrrd: 1.0.0
    PyOpenGL: 3.1.10
    PyOpenGL-accelerate: 3.1.10
    pyopenxr: 1.1.4501
    pyparsing: 3.3.2
    pyproject_hooks: 1.2.0
    PyQt6-commercial: 6.10.2
    PyQt6-Qt6: 6.10.2
    PyQt6-WebEngine-commercial: 6.10.0
    PyQt6-WebEngine-Qt6: 6.10.2
    PyQt6_sip: 13.10.3
    pytest: 9.0.3
    pytest-cov: 7.1.0
    python-dateutil: 2.9.0.post0
    python-dotenv: 1.2.2
    python-multipart: 0.0.30
    pywin32: 311
    pyzmq: 27.1.0
    qtconsole: 5.7.0
    QtPy: 2.4.3
    qtshim: 1.2.2
    RandomWords: 0.4.0
    referencing: 0.37.0
    requests: 2.32.5
    roman-numerals: 4.1.0
    rpds-py: 2026.5.1
    scipy: 1.14.0
    setuptools: 80.9.0
    sfftk-rw: 0.8.1
    six: 1.17.0
    snowballstemmer: 3.1.1
    sortedcontainers: 2.4.0
    soupsieve: 2.8.4
    Sphinx: 9.0.4
    sphinx-autodoc-typehints: 3.6.1
    sphinxcontrib-applehelp: 2.0.0
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 2.0.0
    sphinxcontrib-htmlhelp: 2.1.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 2.0.0
    sphinxcontrib-serializinghtml: 2.0.0
    sse-starlette: 3.4.4
    stack-data: 0.6.3
    starlette: 1.2.1
    superqt: 0.7.6
    tables: 3.10.2
    tcia_utils: 3.2.1
    threadpoolctl: 3.6.0
    tifffile: 2025.3.13
    tinyarray: 1.2.5
    tornado: 6.5.6
    tqdm: 4.67.3
    traitlets: 5.14.3
    typing-inspection: 0.4.2
    typing_extensions: 4.15.0
    tzdata: 2026.2
    Unidecode: 1.4.0
    urllib3: 2.7.0
    uvicorn: 0.49.0
    wcwidth: 0.7.0
    webcolors: 24.11.1
    wheel: 0.45.1
    wheel-filename: 1.4.2
    WMI: 1.5.1
    yarl: 1.24.2