Created attachment 149862 [details]
Example of corner glitch in Konsole
When using transparent and blurred background in Konsole, there's the same graphical glitch as in Bug 395725 behind rounded corners.
STEPS TO REPRODUCE
1. Open Konsole color scheme settings.
2. Enable transparent background and blur.
There's a glitch behind Konsole rounded corners (see attachment).
The corners in Konsole should be round, as they are with other apps.
KDE Plasma Version: 5.25.0
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.4
I also encountered this bug, all my applications in kde 5.27 have this problem