Whenever I try to connect to my Realm with 1.16.4, it stays in the "connecting" screen infinitely, even if I close out and try again. Whenever I try to connect with 1.16.3, it joins the Realm in a few seconds.
Linked issues
duplicates 1
Comments 2

This appears to be a duplicate ofย REALMS-3075, which hasn't yet been resolved. If you have any additional information to provide regarding this issue, feel free to comment on the parent ticket. If you feel that this issue is affecting you, feel free to vote for the duplicated ticket, to give Mojang a basic idea of how many people are impacted by the problem. Just to further inform you, this will not determine how quickly the bug gets handled or fixed.
same issue but can't find 1.16.3 on my list of version options. ๐