Following a recent upgrade I'm no longer able to shutdown, logout, restart or hibernate from the KDE menu. The screen goes blank but the mouse pointer remains on screen and still responds to movement of the mouse but not to any button presses. At this stage I need to press and hold the power button to shutdown.

The problem appears to be related to plasma-workspace-x11 which was upgraded to plasma-workspace-x11-6.0.5.1-1.fc40.x86_64. If I switch over to using wayland instead X11 I can shutdown from KDE but this isn't a usable workaround for me because one of the useful features of keepasxc isn't available with wayland. I am still able to shutdown from the command line with 'shutdown -P' instead of using the KDEE menu. 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: 
Operating System: Fedora Linux 40
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.9.4-200.fc40.x86_64 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
Manufacturer: Dell Inc.
Product Name: Latitude 5590