Just logged out to eat dinner and when I tried to get back on, OfficialServer13 is gone. Doesn't show up in my favorites, official servers, or even MySurvivors. I called a friend of mine who I was playing with and he was logged in still. He logged out just to check the server for me and it's still there for him.
Hide full servers is off and I also checked the friends filter.
So why can't I see the server?