I’m using
Anki 2.1.52 (a989e508) Python 3.9.7 Qt 6.3.0 PyQt 6.3.0
Platform: Mac 12.4
Flags: frz=True ao=False sv=3
Add-ons, last update check: 2022-05-27 09:42:14
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===IDs of active AnkiWeb add-ons===
===Add-ons (inactive)===
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and observed a strangeness. I have a deck like
and it’s definitely empty
also the Rebuild states
But in my decks it shows
It will then show a card which in the past indeed was flagged red, but now it isn’t. Anyhow, even after closing the card comes back in the list.