No class selection possible (Redsec)

Whenever I start a BR or gauntlet game in Redsec, most of the time I don't see any class/character in the selection screen? I can't even change it with left/right or L1/R1. When I cick several times X, then O, then X, etc. after a while it appears. Also when I've been able to select one, most of the time my character isn't shown in the airplane, just the 3 other players.

I already cleared and rebuild cache on my PS5 (base), uninstalled and installed Redsec again. Is this a known issue, why is is still not working?
Also, since Season 4 there's a strange sound bug, you hear some part of the music in the (5.1) rear speaker repeating constantly?