KDE Remote-Desktop times out, then stops allowing logins until a reboot...

Just what it says… When I’m logged into my Fedora 43 (KDE) machine using any RDP client, and I walk away, the thing times out and logs me off – whereupon I cannot log back in without a reboot.

How do I disable this time-out “feature?”

I do want the monitor on the remote machine to go dark when I’m not logged in, or when I’m logged in locally, so I have ‘Turn off screen’ set to 10 minutes in Settings → Power Management → Display and Brightness. I do not want to change that.

So how do I keep that, but force everything to stay active when I’m logged in via RDP?

Thanks for any help you can give.