This issue is closed for me. I uninstalled 91.2.0, deleted the Roaming>Thunderbird directory, and re-installed 91.2.0. I was then able to import my 78.14.0 Home.ics file into the default Home calendar. Then I just had to re-add my few tasks. And also import my address book .csv files. And copy in all my years of saved Local Folders.
Rather a pain to re-create my email accounts and set all the preferences like I wanted them, but now I have all that documented. Thanks to Richard for the hint on deleting the VTODO entries. That .ics file did not import; it just completed this time with no entries in the Home calendar. My lesson learned was to back up my calendar and address books before an update (or a new install), empty my inbox to a Local Folder, and to stop overwriting the preference files, etc. Back on the normal update path now, and happy to be using Thunderbird. -- 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
