MCPE Friend join API

The xBox API is broken, my friend (BlockzYT, he is on 1.10.1) can't connect to my world running on Minecraft pocket edition 1.10.0

We have tried both Connect-to-friend and invite, but noting, even switching accounts didn't do anything, even switching words, restarting both game and device, but NOTHING

please fix the xBox API or create a new API for MCPE