Multiplayer Inconsistency between connecting.

Since the 1.16 release for console, I've been having trouble hosting a game for my friends to join. This seems to usually happen to slightly older worlds of mine (usually pre-1.16). My multiplayer settings are usually set to 'Friends of Friends' with LAN & multiplayer games selected as on. 

When a friend tries to connect, 4/5 times they will be stuck into a 'Connecting to the multiplayer game...' and receive a connection time out after a couple of minutes. This bug is very inconsistent and seems to occasionally happen constantly with me in particular (though, this does happen to my friends as well.)

• I usually have resource packs/behavior packs that don't seem to affect the problem.
• My internet connection is stable.
• We all use non-beta bedrock edition for the console.
• New worlds prove to work more.