Local Multiplayer and Multiplayer as a whole is broken!

Multiplayer is broken on MCPE. Upon opening my world, my brother, who is on an iPhone 6+ on iOS 12, cannot see my world in the local games section 90% of the time. If he does get lucky enough to see my name in the friends section, it loads and loads forever saying “connecting to multiplayer game”. I always try to invite him through the invite section in the in-game menu (we are Microsoft friends) but it doesn’t show on his screen, and if it does it loads perpetually. Please provide a solution to this issue as it is severely affecting my experience with the game. Multiplayer has had a history of being extremely unreliable on my end and I would like a resolution. Thank You!