Disconnect Crash

Hello Mojang

I want to report bug from 1.2 beta. When my friend disconnect his own world and I will appear on disconnected screen, when I hit ok, game crashes. Please fix because I don't want to reopen game everytime. By the way thanks.

-ItzSplashGFX

My Device: Lenovo VIBE P1m running unnoficial MIUI 8 custom ROM