Hi, Gnome Calendar has had crash issues on 3.38 when Changing the Year, All other Distro’s seem to have fixed this issue (Ubuntu, EndeavourOS, Etc) but not Manjaro??, I use the Calendar a lot and really need it working as 2021 is a few days away and i cannot add events for 2021 as it will just close down.
The fix is included in 3.38.2 which is currently in the testing branch. You can either switch to the testing branch or wait for the next stable update.