NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
Clicking wallpaper thumbnails in "Configure Desktop and Wallpaper" does not show preview on the desktop. Have to click OK/Apply to see new wallpaper (just like previous versions of Plasma).
STEPS TO REPRODUCE
1. Open "Configure Desktop and Wallpaper"
2. Click any thumbnail
3. Plasma 5.25 should then instantly preview that wallpaper on the Desktop
Wallpaper does not update/preview.
Wallpaper should update/preview on Desktop. Before clicking OK/Apply to accept change.
Linux/KDE Plasma: openSUSE Tumbleweed 20220614
(available in About System)
KDE Plasma Version: 5.25.0
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.2
*** This bug has been marked as a duplicate of bug 403384 ***