MCPE Crash when Xbox login - with/without Wi-Fi

I recently bought Minecraft on another device, and bought the current Galaxy C8 device.

 

The device needed to have its Play Store re-enabled as it was for Chinese market, but other than that, I was playing perfectly fine.

 

About 2 days ago, Minecraft started to crash on my phone. It would repeat the same thing. Open up - do the wavy thing with Minecraft logo - main menu - attempting Xbox login - crash.

 

My Xbox account is not a child account, nor has privacy settings touched. 

 

I need to know why this is happening.

 

What I am attaching is a video file of the loop.

 

Hopefully I can get a reply sooner or later.

Minecraft_2019-01-21-21-46-28.mp4