Solved Windows Remote Desktop Covered in Black Ghost Icons

Have you ever seen anything like this on your Windows Desktop?


This is the view of the Desktop on my Windows 10 PC as seen via Windows Remote Desktop on my hand-me-down Windows 11 laptop. I had to resort to using my antique phone to take a photo of the screen, because these black icons don't appear when I take a screenshot using the PrtSc key on the Windows 11 laptop. I've had the Windows 11 laptop for a few months and this is the first time these "ghost icons" have appeared.

I'm running Windows 10 22H2 on the PC, and Windows 11 25H2 on the laptop.

I went to the PC and logged in from there, to see if the ghost icons also appeared on the PC monitor screen. They did not appear there. So I went back to the laptop and reconnected via Windows Remote Desktop and found that the ghost icons had also disappeared from the laptop screen.

So I'll mark this as solved, even though the source of those ghost icons remains a mystery to me.

Intermittent or transient errors are the hardest to catch and kill. Read/viewed your desktop with interest and dread. Fingers crossed it was cosmic rays, and won't come back again.
--Ed--