Hello,

This is for Minecraft Java 1.16.5 + Minecraft Realms on MacOS and Windows

For the past few day's playing two of the worlds in my Realms account will eventually timeout and disconnect. This happens for all players that connect to this world. The fastest way to reproduce this problem is to fly in a straight line. In about 10 seconds of flying straight, the world will stop drawing tiles and eventually you will hit the edge of the world and be disconnected from the realm with a message saying the connection timed out. Sometimes you will get disconnected by just standing still. This always happens within 5 minutes of joining.  I've tried on both MacOS and Windows and other friends are noticing the same problem connecting to my realm. I've tried restoring from backup, disabling my firewall, as well as different versions of the client with no luck.

I've noticed that this does not happen when playing on a brand new world.