Everyone Unknown and not seeing 3/4 of a Raid

Hi

I know this has been brought up a few times but never with a solution..

I have this issue quite often regardless of servertime that everyone or atleast most ppl are unkown for up to 2 hours. Most of the time when i join a raid the UI also doesnt show me like 3/4 of the raidmembers until it at some rnd time it loads everyone.

-Reload or Relogging doesnt help at all.
-Deleting cache doesnt help.
-Its not any of my addons since the same issue occurs with disabled addons
-its not my internet, ive got a stable low ping 300mbps via ethernet cable
-it cannot be my pc Ryzen 9 5900x & rtx3080 (same issue on other pcs)
-ive redownloaded client already, same issue


If anyone got tips how to fix this i would very much appreciate the help

Cheers