[Bug] Fatal error while editing on Anki 2.1.46

OS: Manjaro Linux (latest edition)

manjaro

Add-ons:

A fatal error occurred, and Anki must close. Please report this message on the forums.
Anki 2.1.46 (94913ec2) Python 3.8.1 Qt 5.15.1 PyQt 5.15.1
Platform: Linux
Flags: frz=True ao=True sv=?
Add-ons, last update check: 2021-08-13 11:17:44

Caught exception:
Traceback (most recent call last):
File “aqt/taskman.py”, line 101, in _on_closures_pending
File “aqt/taskman.py”, line 71, in
File “aqt/operations/init.py”, line 214, in wrapped_done
File “concurrent/futures/_base.py”, line 432, in result
File “concurrent/futures/_base.py”, line 388, in __get_result
File “concurrent/futures/thread.py”, line 57, in run
File “aqt/operations/init.py”, line 199, in wrapped_op
File “aqt/editor.py”, line 536, in
File “anki/notes.py”, line 191, in fields_check
File “anki/_backend/generated.py”, line 355, in note_fields_check
File “anki/_backend/init.py”, line 126, in _run_command
pyo3_runtime.PanicException: called Result::unwrap() on an Err value: PoisonError { … }

Traceback (most recent call last):
File “aqt/browser/table/model.py”, line 73, in _fetch_row_from_backend
File “anki/collection.py”, line 689, in browser_row_for_id
File “anki/_backend/generated.py”, line 792, in browser_row_for_id
File “anki/_backend/init.py”, line 126, in _run_command
pyo3_runtime.PanicException: called Result::unwrap() on an Err value: PoisonError { … }


Another issue:

Settings are reset to default after Anki crashes. For example, I use the V3 scheduler and suddenly reverts to V2, etc

Can you reproduce it without add-ons? When problems occur - Frequently Asked Questions