I'am sorry, I tried to update the Mutter with the normal Update Procedures...
I'am not capable to Compile or install the Mutter 3.37.4 as you mention/refer
to...
Instead (as I do not believe that I'am the only person) I installed:
Kubuntu 20.04, KDE Plasma 5.18.5 etc. etc,
Copy & Paste with
Even with Mutter 3.36.4-0ubuntu0.20.04.1, from the source:
mutter_3.36.4-0ubuntu0.20.04.1_amd64.deb
the same issue; no copy & paste, which seems to become worse compared with
previous releases.
I need now several times (more than two times), to paste the right tekst/figure
from the clipboard.
