I don't know if it can help, but here's a screenshot of my calendar- data/ files right now (upgraded from 78 to 91 and I can't view local calendar events): https://i.imgur.com/DQ6153V.png
\calendar-data\local.sqlite \calendar-data\local.sqlite-shm \calendar-data\local.sqlite-wal \calendar-data\backup\local.v22.sqlite I thought that maybe my lost events was in the backup\local.v22.sqlite file but it looks like very similar to the actual \calendar- data\local.sqlite -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1945368 Title: Thunderbird 91 forgets default calendar To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1945368/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs