Created attachment 135564 [details] Phantom window decoration context menu everything from git master today. See attached screen recording. Text version: If I right-click on the titlebar of a Breeze-decorated window, the resulting context menu does not disappear when closes or on focus loss. Instead, a non-interactive ghost of it remains on screen. It's still visually there, but does not eat clicks and is not interactive. This does not happen with other context menus, just the Breeze window decoration one.
I can no longer reproduce this issue. If it happens again, I'll re-open and add that kwin support info.