[gbm]

$ calibre-debug --gui
calibre 8.11.1  embedded-python: True
Linux-6.14.0-32-generic-x86_64-with-glibc2.39 Linux ('64bit', 'ELF')
('Linux', '6.14.0-32-generic', '#32~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Sep  2 14:21:04 UTC 2')
Python 3.11.13
Interface language: None
EXE path: /opt/calibre/bin/calibre-debug
Successfully initialized third party plugins: ACSM Input (0, 1, 0) && Gather KFX-ZIP (from KFX Input) (2, 26, 2) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 26, 2) && ACSM Input Plugin GUI Extension (0, 1, 0) && Baen (1, 1, 0) && Barnes & Noble (1, 5, 7) && Diaps Editing Toolbag (0, 5, 0) && EpubMerge (3, 2, 0) && EpubSplit (3, 12, 0) && Goodreads (1, 8, 3) && Hyphenate This! (0, 1, 3) && KFX metadata reader (from KFX Input) (2, 26, 2) && From KFX (2, 26, 2) && KFX Input (2, 26, 2) && KindleUnpack - The Plugin (0, 83, 8) && Kobo Utilities (2, 24, 3) && Modify ePub (1, 8, 6) && Quality Check (1, 14, 2)
QPA platform: xcb
devicePixelRatio: 1.09375
logicalDpi: 96.0 x 96.0
physicalDpi: 84.58633776091081 x 84.69527027027027
ApplicationPaletteChange event ignored
Using calibre Qt style: True
Traceback (most recent call last):
  File "runpy.py", line 198, in _run_module_as_main
  File "runpy.py", line 88, in _run_code
  File "site.py", line 47, in <module>
  File "site.py", line 43, in main
  File "calibre/debug.py", line 234, in main
  File "calibre/gui_launch.py", line 74, in calibre
  File "calibre/gui2/main.py", line 548, in main
  File "calibre/gui2/main.py", line 560, in run_main
  File "calibre/gui2/main.py", line 398, in run_gui
  File "calibre/gui2/main.py", line 408, in run_gui_
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/ui.py", line 51, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/init.py", line 37, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/library/alternate_views.py", line 67, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/pin_columns.py", line 9, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/library/delegates.py", line 46, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/dialogs/comments_dialog.py", line 11, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "calibre/gui2/comments_editor.py", line 14, in <module>
  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 "bypy-importer.py", line 279, in exec_module
  File "html5_parser/__init__.py", line 31, in <module>
RuntimeError: html5-parser and lxml are using different versions of libxml2. This happens commonly when using pip installed versions of lxml. Use pip install --no-binary lxml lxml instead. libxml2 versions: html5-parser: (2, 9, 14) != lxml: (2, 15, 0)

Only happens when try to run in debug.

bernie