Hi there! I am currently testing out the new beta version for the Nether Update, 1.16.0.57 and decided to go ahead and test it with my friend, however when attempting to join I was greeted with frozen screen (this was tested both on Windows 10 and Xbox One X) which resulted in being unable to join my friend.
Linked issues
Comments 1

Thank you for your report!
We're actually already tracking this issue at MCPE-69002, so I will resolve and link 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