Invisible people?

So on my server i get around 1-3 players each round saying everyone is invisible. It only happens to a few people each round. It’s happened to me once all i had to do is retry in console this problem started happening since yesterday. is there any known fix for this or what’s causing it

Edit: TTT,Pointshop,A autoban after 3 rdm kills and that’s about all p.s i did say this just started to happen i haven’t added anything new in a while

You’re going to have to give more information then that to get any help.

For example, what gamemode are you running?
Which, if any, custom addons are you using?