Hello, this bug refers to players not being able to connect to the game.

We use the current realms API and we had a little look into the reasoning it is not working and we had found it was a (503 ERROR)

This (503 ERROR) makes it so players are not able to grab the IP and port of the realm to prompt connect and this is causing them to crash on attempting to connect.

Some players sit on the loading screen many times and it continues to say

"Could not attempt to connect"

This issue sometimes causes the game to crash and this makes the players have to restart their game. 

We own a big discord server with over 1,000 members we have received multiple reports of not being able to connect to our realm.

This issue is a very important fix as it stops people who have a current paid subscription with realms. So this should be addressed urgently.

A side note with realms is that since this update realms have experienced huge amounts of lag and rendering issues with chunks and lag spikes.