https://bugs.winehq.org/show_bug.cgi?id=46385
--- Comment #11 from Van winebugrpt18356@fastmail.jp --- (In reply to Alexandre Julliard from comment #8)
I suspect something went wrong with your prefix manipulations.
If that were true, wouldn't there have been an issue under WINE v3.0.4?
(In reply to Alexandre Julliard from comment #10)
There must be something else that's different with your setup. Please get a WINEDEBUG=clipboard trace.
Could be. I'm beginning to wonder if the issue might be caused by something else. That's why I asked what you were testing under on your end. I've noticed updates to the apparmor package lately. However, I'm not sure exactly what apparmor does or how it works.
I'll try the WINEDEBUG trace later. I'm not currently using Debian Unstable.
Debian testing, but that shouldn't make any difference either.
It makes a huge difference. Debian Testing and Debian Unstable are very different; different versions of packages and sometimes one contains packages that the other doesn't.
WINE v4.0-rc4 isn't even currently in the Debian Testing repos. I've stated that I'm using Debian Unstable, so I'm dumbfounded why you would even test under Debian Testing and assume that if everything is okay there, it should be okay on my end.