Anki crashed and said to copy and post this code in this forum

Anki Help
1

Anki 26.09.3 (29bb700b)
Python 3.13.15 Qt 6.11.2 PyQt 6.11.0
Platform: Windows-10-10.0.19045-SP0

Traceback (most recent call last):
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\taskman.py”, line 148, in on_closures_pending
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\taskman.py”, line 88, in
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\taskman.py”, line 111, in wrapped_done
File "D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\operations_init.py", line 123, in wrapped_done
File “concurrent\futures_base.py”, line 453, in result
File “concurrent\futures_base.py”, line 402, in _get_result
File “concurrent\futures\thread.py”, line 59, in run
File "D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\operations_init.py", line 108, in wrapped_op
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\aqt\operations\note.py”, line 22, in
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\anki\collection.py”, line 540, in add_note
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\anki_backend_generated.py”, line 1450, in add_note
File “D:\a\anki\anki\out\installer\build\anki\windows\visualstudio\x64\Release\app_packages\anki_backend.py”, line 162, in _run_command
pyo3_runtime.PanicException: assertion left == right failed
left: 1792050922622
right: 0

2

You should start with the Troubleshooting Checklist – and try everything, including the things you don’t think are relevant.

If you continue seeing the crash, make sure when you respond to let us know what you’ve tried, and what you’re doing when the crash happens.

3

I have the exact problem, after upgrading to anki .ver 26.09.3.

Note: When I use .ver 25.09.4, everything works fine.

What is wrong?

  • When I click on Tools > Check Media, Anki crashes.
  • It’s complaining about a file named pronunciation_de_busse.mp3, which I have had in my collection for 7 years now. I have checked, and there is only once instance of the mentioned file and it has no umlauts.

My specs

  • OS: Linux
  • Distro: Kubuntu
  • Desktop Env: KDE Plasma 6.6.6
  • QT ver: 6.10.2

What I have tried already:

  • Check Database

    It says:
    Added last review time to ⁨2⁩ cards.
    Database rebuilt and optimized.

  • Restart Anki
  • Restart OS
  • Try it on other devices
  • Run Anki without addons (holding down Shift)

Debug Info

Anki 26.09.3 (29bb700b) 
Python 3.13.15 Qt 6.11.2 PyQt 6.11.0
Platform: Linux-7.0.0-38-generic-x86_64-with-glibc2.43

Traceback (most recent call last):
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/aqt/taskman.py", line 148, in _on_closures_pending
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/aqt/taskman.py", line 88, in <lambda>
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/aqt/mediacheck.py", line 105, in _on_finished
  File "/usr/local/share/anki/python/lib/python3.13/concurrent/futures/_base.py", line 453, in result
    return self.__get_result()
           ~~~~~~~~~~~~~~~~~^^
  File "/usr/local/share/anki/python/lib/python3.13/concurrent/futures/_base.py", line 402, in __get_result
    raise self._exception
  File "/usr/local/share/anki/python/lib/python3.13/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/aqt/mediacheck.py", line 94, in _check
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/anki/media.py", line 181, in check
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/anki/_backend_generated.py", line 2066, in check_media
  File "/home/runner/work/anki/anki/out/installer/build/anki/linux/zip/anki/app_packages/anki/_backend.py", line 162, in _run_command
pyo3_runtime.PanicException: assertion `left != right` failed
  left: "pronunciation_de_busse.mp3"
 right: "pronunciation_de_busse.mp3"