Created attachment 137791 [details] No window thumbnail SUMMARY Since I upgraded to Plasma 5.21, window thumbnails stopped working. They just display an empty rectangle. They used to work fine on Plasma 5.20. I'm on Wayland, I have not tested on X11. STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.21.4 KDE Frameworks Version: 5.81 Qt Version: 5.15.2 ADDITIONAL INFORMATION
*** This bug has been marked as a duplicate of bug 427826 ***