Error when adding new cards - version 2.1.49

Anki 2.1.49 (dc80804a) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=True sv=2
Add-ons, last update check: 2021-12-18 19:21:42

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\taskman.py”, line 90, in wrapped_done
File "aqt\operations_init
.py", line 117, in wrapped_done
File “aqt\operations_init_.py”, line 133, in _fire_change_hooks_after_op_performed
AttributeError: ‘NoneType’ object has no attribute ‘changes’

This is most likely caused by an add-on. Try disabling yours.

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