SUMMARY Present Windows effect only shows the currently active window, if Activity Switcher is opened. STEPS TO REPRODUCE 1. Open several applications. 2. Press Alt+Tab to open Activity Switcher and switch to another window, without releasing the key. 3. Move mouse to upper-left corner of the desktop. OBSERVED RESULT Only the currently active window can be seen. Other windows are displayed empty but can be clicked on. EXPECTED RESULT All opened windows are correctly displayed. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Debian testing KDE Plasma Version: 5.23.4 (Wayland session) KDE Frameworks Version: 5.88.0 Qt Version: 5.15.3
This has been fixed with the rewrite in Plasma 5.25, done by Marco Martin with https://invent.kde.org/plasma/kwin/-/commit/376ee357dbc50fec3b6e71c40938171ddb2e726a!