My friend can not join any of my worlds, it has him stuck on the "locating server" screen even though I can see his character in my world. My friend has tried joining my world on a phone (Android) version of the game and a PlayStation 4 console as well. I also had another friend on an Xbox one try to join and the same issue. I can however join other people's worlds but it usually takes a longer than usual time to load me in their game and I will often disconnect often. It's definitely not an internet issue for my wifi is working really well. I have not experienced this issue until the version 1.16.201 update.