Same situation here - iPad mini 4 working for ages, including with version 1.4.3.
Tried to create Xbox child account - iPad worked fine without servers
Changed the setting to allow join multiplayer games - Minecraft started, showed "logging in..." and then crashed regardless of that I was doing.
Turn off wi-fi / logout from xcode solved the issue til we log-in again.
Crash logs obtained from the machine using XCode:
Yannis Doukakis
Same situation here - iPad mini 4 working for ages, including with version 1.4.3.
Tried to create Xbox child account - iPad worked fine without servers
Changed the setting to allow join multiplayer games - Minecraft started, showed "logging in..." and then crashed regardless of that I was doing.
Turn off wi-fi / logout from xcode solved the issue til we log-in again.
Crash logs obtained from the machine using XCode:
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