Ever since the update to 1.13, I have been having trouble with my Realm. I was able to get in myself as the owner of the realm yesterday, but today it just tries to connect indefinitely and never actually loads into the realm. A friend reported a similar issue, where she would get "Timed out" errors whenever she tried to log in. Upon looking at the user list for the realm, some of the usernames seem to be unreadable, whereas some are just fine. As of right now, nobody (including myself) is able to get into the realm that we know of, as those players that are readable do not play anymore to check if they can access. 

We have tried to reinvite one of the users, but it did not work. She was able to load into the realm for the first time but was immediately Timed Out.