This isn't a new issue for me, but I thought I'd raise it now. I had it in 2014 all the way through.

Basically, if I have too many GW Windows open, GW seems to eventually throw a fit and stop displaying content of new windows, like it's run out of memory. I have 32GB, on W10 fully updated, with up to date graphics drivers etc.
To fix it I have to close GW completely, or more often, reboot my PC.

I have reinstalled the OS, Replaced the PC, and completely redone my profile in Windows.

Anyone else seen this or know anything about it?