I’ve used Greenshot in the past, but not now. I AM using PicPick, but killing it didn’t make a difference. When it happens I’m trying to work through killing various processes till it goes away. but not luck yet.
I checked that thread out. Could be, but on my desktop, while I have Outlook installed with the rest of Office 365, I never use it. I’m in Gmail for mail.
Googled that exact wording too and didn’t turn up much past the one mention that you found.
Figured this out - it's related to Windows Security. Hover back over it in the ^ menu, and it will disappear. This was driving me insane and I figured it out so I needed to share lol.