SUMMARY KDE / application window become unresponsive if a message notification pops-up while hovering over the open windows in toolbar. STEPS TO REPRODUCE 1. Open a browser with two or more windows (not only tabs) 2. Open Konsole 3. Execute this in Konsole: `sleep 5 && notify-send foo bar` 4. Immediately after the command above is entered in Konsole, hover the mouse button on top of the browser icon in the Toolbar, in order for the "thumbnails" of both windows to be displayed, and then hover the mouse over one of them, but DO NOT CLICK and keep the mouse pointer in place. 5. Wait until the notification from the command #3 to pop up. OBSERVED RESULT The hovered window will be displayed but will be unresponsive. On the other monitor the desktop wallpaper will be displayed. In order to make things work again (return to being responsive) I simply hit Alt + Tab. EXPECTED RESULT The notification pop-up should not interfere with the windows browsing. SOFTWARE/OS VERSIONS KDE Plasma Version: 6.0.2 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Kernel Version: 6.7.9-1-default (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i7-10510U CPU @ 1.80GHz Memory: 15.4 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics Manufacturer: Dell Inc. Product Name: Vostro 5490 ADDITIONAL INFORMATION Dual monitor setup. Extended desktop, secondary screen placed on top of primary one. Related to this issue: https://bugs.kde.org/show_bug.cgi?id=478517