I wonder if that’s the same thing that’s being reported here:
I haven’t seen this on any of my cameras, but there are suggestions in that topic about removing devices from Favorites and adding them back, as well as viewing events from a camera’s Live Stream screen instead of the Events tab.
I’m not sure what the issue is. I’m just trying to connect some dots. I think the suggestion about a server issue or
is what makes the most sense to me at the moment.