I was previously unaware of the v3 scheduler option under Preferences → Review and don’t know if it worked correctly on this machine before. Since I started using FSRS for review scheduling, which requires the “Custom Scheduling” field to be available in the deck options and thus v3 scheduler under Anki’s preferences, I’ve noticed that the checkbox for the v3 scheduler does not save between Windows 11 reboots.
Reproduction steps:
Latest stable Windows 11 and Anki Qt6 installed
Open Anki, open Preferences → Review, check the v3 scheduler box
Open deck options, add FSRS scheduler code in the Custom Scheduling field, and save
Check Anki preferences and deck options to confirm everything’s in order
Close Anki
Shutdown / restart Windows 11
Log in to Windows 11 again
Open Anki
Error pops up because the Custom Scheduling field is gone from deck options and FSRS scheduler’s code is not available:
Check Anki Preferences → Review → v3 scheduler checkbox is empty
Thanks for your reply. I haven’t imported any collection recently (or actually at all). This collection was created last year by importing decks found on the shared decks list. The issue seems to occur about once a day in the morning when I first boot up my laptop for the day. I’ve now noticed that restarting during the day doesn’t seem to cause Anki to forget the v3 scheduler setting.
I sync with AnkiWeb. I also use AnkiDroid, however, I’ve had several occasions where I did not use AnkiDroid between using Anki on Windows (did reviews on Windows for a few days in a row) and the issue still occurred.
