SUMMARY *** on X11 if you drag a window and while doing so press alt + f4 you get a "ghost window" of the contents left on the desktop that doesnt vanish until you restart the compositor. this is me done it 4 times in a row as an example https://i.imgur.com/nxaDPxD.png *** STEPS TO REPRODUCE 1. drag the window and observe it become blurred and transclucent 2. press alt + f4 meanwhile dragging 3. application exits but a "ghost window" is left permanent on the desktop. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.26.4 (available in About System) KDE Plasma Version: 5.26.4 KDE Frameworks Version: 5.101.0 Qt Version: 5.17.7
*** This bug has been marked as a duplicate of bug 441379 ***
*** This bug has been marked as a duplicate of bug 439332 ***