Created attachment 132721 [details] Kwin breeze theme preview After several major update earlier, system-wide kwin breeze theme became broken. System settings doesn't preview it and Kwin doesn't draw breeze decorations. But on fresh created user it works perfect. I had try to delete kwin, plasmashell configs under my old user, but without result.
In syslog I find this message: 25.10.2020 11:25 kwin_x11 aurorae: Couldn't find QML Decoration "breeze"
Do you have a customised version of Breeze perhaps in ~/.kde/share/apps/aurorae/themes/ ?
(In reply to Justin from comment #2) I haven't ~/.kde dir, only ~/.kde4
(In reply to Justin from comment #2) >>> ls -l /home/mjok/.local/share/aurorae/themes/ total 4,0K drwxr-xr-x 2 mjok mjok 4,0K окт 25 11:32 borderline/
If you've got ~/.kde4 I imagine your install is a long lived one. The fact that it works fine on a new user means it's likely an issue with older KDE4 directories that are clashing. With a new user all config would go into newer ~/.config/k* folders/files. If you really want to fix it you could mv ~/.kde4 and ~/.config folders out to somewhere else and start fresh with new configuration data. By moving the folders you can always move them back if it all goes bad.
(In reply to Justin from comment #5) Ok. I've already done this. Works as expected. Thanks. I would to close this issue.