This error message appears every time when I click on a bar graph, although it doesn’t seem to affect anything. I had tried Check Database and started Anki while shift key but the problem still persists. I also found that it only occurs on the premade deck (35317 cards). My own deck is working normally.
Anki 2.1.58 (ab8b1465) Python 3.9.15 Qt 6.4.2 PyQt 6.4.0
Platform: Windows-10-10.0.22621
Flags: frz=True ao=False sv=3
Add-ons, last update check: 2023-02-17 20:35:58
Caught exception:
Traceback (most recent call last):
File "aqt.browser.sidebar.tree", line 333, in mouseReleaseEvent
File "aqt.browser.sidebar.tree", line 436, in _on_search
AttributeError: 'NoneType' object has no attribute 'item_for_index'
Only if you have permission from the copyright holder. If you have the deck in your private AnkiWeb account, please let me know the email address you are syncing with privately.
Thanks for providing that video. The error seems to indicate that you’re clicking on the sidebar before it has been properly displayed. Is it possible you accidentally double-clicked on the graph? Since a single click will open the browser, the second click would have landed on the sidebar.