Error with Anki 2.1.28

[AndrewReitz]

Recently update Anki from 2.1.16 to 2.1.28 and I'm getting the following issue. The error occurs after I paste in Kanji and hit tab.

Please let me know if there is any way I can help assist in debugging this issue.

Debug info:
Anki 2.1.28 (7d8818f8) Python 3.8.0 Qt 5.15.0 PyQt 5.15.0
Platform: Mac 10.15.6
Flags: frz=True ao=True sv=1
Add-ons, last update check: 2020-07-25 10:41:46
Add-ons possibly involved: ⁨Kanji Colorizer stroke order diagrams, Frozen Fields⁩

Caught exception:
Traceback (most recent call last):
File "aqt/webview.py", line 35, in cmd
File "aqt/webview.py", line 121, in _onCmd
File "aqt/webview.py", line 536, in _onBridgeCmd
File "</Applications/Anki.app/Contents/MacOS/decorator.pyc:decorator-gen-2>", line 2, in onBridgeCmd
File "anki/hooks.py", line 638, in decorator_wrapper
File "anki/hooks.py", line 635, in repl
File "/Users/andrewreitz/Library/Application Support/Anki2/addons21/516643804/main.py", line 135, in onBridge
return _old(self, str)
File "aqt/editor.py", line 397, in onBridgeCmd
File "aqt/gui_hooks.py", line 1467, in call
File "anki/hooks.py", line 594, in runFilter
File "/Users/andrewreitz/Library/Application Support/Anki2/addons21/1964372878/kanji_colorizer.py", line 150, in onFocusLost
return addKanji(note, flag, currentFieldIndex)
File "/Users/andrewreitz/Library/Application Support/Anki2/addons21/1964372878/kanji_colorizer.py", line 141, in addKanji
note.flush()
File "anki/notes.py", line 67, in flush
AssertionError

[AndrewReitz]

I removed the note.flush() on line 141 and everything seems to be working just fine.

[cayennes]

Thanks for letting me know! I've uploaded a fixed version