SUMMARY Kwin appears to behave differently wrt other window managers with the result of breaking xpra (https://github.com/Xpra-org/xpra), an application for using X11 applications from remote. I have the following configuration: Server: Manjaro linux, KDE plasma 6 with wayland session Client: same Running xpra 6.0.1 (latest) on both machines. On the server I start xpra as a server managing the "virtual" display :101. Then I start applications in X11 mode using DISPLAY=:101. On the client I start xpra to attach to the server. The xpra client works as a GTK3 application in the wayland session. Now, I start VirtualBox on the server on the :101 display. The Virtualbox window is correctly shown in the client. However, if I right click to open a contextual menu, the menu opens and disappears immediately, without letting me use it. I am being told from the xpra developer that this behavior is not experienced on other desktops. See https://github.com/Xpra-org/xpra/issues/4246 STEPS TO REPRODUCE 1. Have 2 hosts 2. Assure that they both run a plasma 6 wayland session 3. Assure that xpra is installed on both 4. Assure that Virtualbox is installed on one of them that will be the server 5. On the server run `xpra start :101` 6. On the client run `xpra attach ssh://server/101 --start konsole` 7. On the client see a remote konsole from the server appear 8. In the remote konsole type `VirtualBox` to start virtualbox on the server 9. See the Virtualbox window appear on the client 10. Right click on some object in the Virtualbox window to make a context menu appear OBSERVED RESULT See the context menu appear and immediately disappear EXPECTED RESULT The context menu should remain visible until it is used or erased. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.1 Kernel Version: 6.9.2-1-MANJARO (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Celeron® N4120 CPU @ 1.10GHz Memory: 5.6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 600 Manufacturer: CHUWI Innovation And Technology(ShenZhen)co.,Ltd Product Name: Hi10 X ADDITIONAL INFORMATION Tested with a server that is the same configuration but Intel haswell hardware Also seen with a client that is the same configuration but Zephyrus Rog 14 AMD Ryzen + rembrandt graphics. Xpra is 6.0.1 Virtualbox is 7.0.18