OK, done. The square the middle of the screen was when I launched from the application menu and hasn't happened again.
I've noticed that if I try to reboot after attempting to launch libreoffice, my system will hang. ** Attachment added: "journalctl-output.txt" https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1871067/+attachment/5347933/+files/journalctl-output.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871067 Title: libreoffice doesn't start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1871067/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs