Vic,
I am not alone! smile
I usually get this if I leave BIAB on screen for a few hours and then come back to it. For me, usually happens on closing.

Unfortunately I can not pinpoint the issue. I had these EOS issues for many month... It would go away with some patches, but then would re-appear on others.

Just curious what kind of computer you have? I had this issue on 2 Thinkpad computers, just wondering if it relates to this specific brand?