Thanks for the screenshots! I'll pass them on to the team!
Are you using any custom Engine.ini file or any custom Launch Options in Steam ?
this is server wide we had this the other day and everyone can see it so im not too sure its a config issue
this seems to be the same issue we reported here that happened on my server: https://forums.focus-home.com/topic/42132/the-headless-warrior
would you like to have my server config?