When I try to join my friends' world (not realm) I get stuck on "Connecting to multiplayer game" for several seconds before getting an "Unable to connect to world." message. Some of my other friends can join but others can't. I don't know if this relates, but I have the same Xbox Live account connected to both my phone (PE) and my computer, and both have Minecraft installed. Other people also can't join my world.
Related issues
Comments
migrated
Uriel Salischiker
Thank you for your report!
We're actually already tracking this issue in MCPE-36190, so I've resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Try to change your skin. There is a post claiming they have the same problem, but when changing your skin it lets you join.