LibreOffice 6.3 has not been officially released to Ubuntu 18.04, from where did you install this?
Please could you confirm that this occurs on the official 6.0.7 Bionic release. ** Changed in: libreoffice (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/1840693 Title: Can't change input method (English->gcin Chinese) in LibreOffice To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1840693/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs