Qt applications are opened corruptly in root mode and appimages

[Omer I.S.]

Operating system: Kubuntu 21.04.
Qt applications are opened corruptly in root mode and appimages. These applications are opened without Breeze theme, but with a corrupt theme. Setting Breeze theme as the default theme in root mode does not solve the problem. These applications are opened correctly when not in root mode.
The first time I experienced the bug was after opening software-properties-qt.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1930697/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Omer I.S. (omeritzics)]

Marking as "kubuntu-meta" package bug.
Please change the package if I wrong.