Year 2022-and still the problem with mentioning people

Is anyone experiencing this problem yet? And yes, the people I need to mention are part of the team and they do have an edit file option. And part of them I can mention whereas some of them not. My coworkers have the same problem and it’s really annoying.

I see the same topic from 2021 or earlier but I cannot see any reason for this besides obvious ones.

I have same problem, last week I can mention someone but from this week I cannot. Never see the suggested people list when I tap “@”.

Same here. From today I can’t mention anybody.