Minecraft Windows 10 Edition Unknown Crashing Issues

P.S. – I don't know which ("AFFECTED VERSION/S") to choose. Its Minecraft Windows 10 Edition on v1.2.5

This has been happening for a while on Minecraft Windows 10 Edition for me.

Most of the time I'd just be playing with friends when it happens.
Typically it happens after a block is mined, someone goes through a portal, or any event that happens.

The screen goes white, then Minecraft stops responding, and then Minecraft just quits on itself.
Rare side affects are : The world goes back in time and/or an inventory gets reset.

Sometimes it says Global Resource Crash or something. I have default Minecraft Resource Pack.

– Update : Now it starts to sign me out of Xbox when I join a world.

It can affect me at any gamemode. (survival, creative)
Computer factory resets were put into place : No help. (No I didn't factory reset just for Minecraft.)

Please bring assistance over here. It's very annoying.