Version 42.3 did fix an error with scheduled backups to encrypted drives! I suspect that might be what you're hitting? Can you try the snap and see if that fixes things? Might want to make a manual backup first just to confirm everything is working.
snap install deja-dup --classic sudo apt remove deja-dup Maybe we should backport that patch to 20.04. ** Changed in: deja-dup (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901340 Title: Backup doesn't automatically start when drive is inserted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1901340/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs