[Doctor Eggs]

That's a new one. Anything else going on in the background?

Get us a debug log (wiki) for more details.

I don't think there is anything out of the ordinary going on in the background. Like @sualfred said, it doesn't happen all that often so this is going to be difficult for me to get a log. Also since it generally only happens after a longer period of inactivity, the log file will probably be huge.

I don't have a multiple monitor setup, but I've had it happen on different Kodi installations. I see it more often on Win10, but have also had it happen on my RPi2 with Libreelec. I'm using the skin Aeon Nox: Silvo but believe I've seen it happen on Estuary as well.

I'll post a log once I get the issue replicated.