I'm setting up nicknames on a new server, nicknames show in tab but not in chat. Any tips?

I'm whitelisted, but it says I'm not?...

Wind Charges
Game crash - Exception in server tick loop
Players inventory gets cleared
Questions about what Operating System to host on
Overall best custom enchants plugin?
In the market for a bedrock hosting service!
set world spawn and /setspawn in the new world and when people load in they sufficate
How to make a command spit out a link in chat
Worldguard Allowing No-Permission Players to Build
Unexplainable lag of one server member
Server Host Options
Well performing grave/deathchest plugins?
City generation plugin or data pack?
Oraxen Furniture Died - cant remove old models - Giving $20 for a fix

Repeated error on server
Plasmo Voice not working correctly