This bug has been going on since Better Together's Release, and this update today did NOT Fix it.

BUG
After Playing in a World anywhere from 10 Minutes to 3 Hours, if you attempt to use the XBOX HOME Button it just makes your screen go dark and then an ERROR message appears saying: (Give it another Try. If you keep seeing this, turn off your Xbox by pressing and holding the power button for 10 seconds. Then turn it back on and try your action again. 0x80040200). Once this Bug occurs, Anything that makes a Popup window appear through Xbox or anything else other than the actual Minecraft Game itself will cause that error message to appear.

My friends have told me that when im in their party and this error occurs that it disconnects me from their party and shows ive gone offline/idle

Hard Reset fixes it temporarily but then it ALWAYS comes back. This is an issue because it sometimes causes a Rollback in my save if i Hard Reset to fix it.

Also it is strange because even after the Bug occurs, i can continue to play the Minecraft Game for hours without it restarting/crashing the XBOX but this ERROR keeps me from using Xbox Live or any other Xbox Features such as Menus, Messages, Guide etc.