What I also notice, since yesterday, is that I get a notification alert but when I click the little bell, no drop-down. This is rather similar to the week or so earlier in the year when I could tag people but no drop-down appeared with suggestions.
@vonlost maybe, but nothing has changed on my end. I’ve already tested mobile and Firefox desktop and neither of those work as they did two days ago either.
Beyond testing that it’s not worth the time, I am just reporting the bug.