When I copy like 500 lines of text, and then mouse hover over the klipper icon in the system tray, the popup that tries to comes up telling me what is in the clipboard glitches out. I see a bunch of lines go by on the screen, and then it disappears. I think the popup should be limited in someway to prevent that. Reproducible: Always
Can't reproduce it on Plasma 5.8.3, possibly fixed along the way.
Copied ~850 lines of text to klipper and see no issues, closing as fixed.