Can't see meetup organizer but can see other rider

My friend setup a meetup for me and another friend. when the meetup started I could see my friend, but not the organizer (in the game nor the rider list). The organizer couldn’t see me, but he could see the other friend. Was really weird. I tried rejoining the meetup and still the same result. All three of us were in the meetup chat though. I could also see my friends times pop-up during KOM sprints. I think I was in purgatory.

Are you on a Wattbike, by chance? I have seen some other threads on the Forum about riders not being able to be seen by others. You might want to search for those.