On Ubuntu 20.04, I had the issue of copy-paste working every other time, specifically on LibreOffice apps (Writer, Calc and Draw), not in any other apps (Gedit, Firefox, Thunderbird, etc.) or in the GNOME Shell.
However, disabling the Clipboard Indicator extension fixed this for me.
On Ubuntu 20.04, I had the issue of copy-paste working every other time, specifically on LibreOffice apps (Writer, Calc and Draw), not in any other apps (Gedit, Firefox, Thunderbird, etc.) or in the GNOME Shell.
However, disabling the Clipboard Indicator extension fixed this for me.