A “Checkvist was updated” message within an oval button appears at the lower left. Normally it’s there briefly but now it never goes away. I get this under Firefox and Chrome and on different computers even after logging out and rebooting. I’m on ChromeOS and Linux. It’s a nuisance because with the browser window tiled on a laptop screen it covers over list text.
Just to clarify - have you tried clicking on it?
Oh gee, that did it!
Sorry, I had no idea that the message was clickable.