On Pocket Edition, one Microsoft friend in specific (Yahere9666 is his tag) cannot join any of my worlds (my tag being emj039353) but I can join all of his, and other friends of mine can join mine. This problem has been going on since around June 27th or 28th. What will happen is the loading screen will appear for him to join my world (I do not have it as a realm) and then it will load, and say that the was unable to connect. We've given it a full day to see if it fixes itself, the both of us going to work to see if us being off the world fixed the issue, then every night we go on to see if we can play like regularly, but it never works. We don't want to delete the apps because we've put in three months of work over quarantine and just want this issue resolved. Attached is him in the world but only on my screen. He'll be present, but then it'll say he left without ever technically joining.