This bug have been active for me for over 24 hours. The game freezes up when entering the app. I've tried installing and reinstalling, restarting my tablet, turning my internet off and off. Nothing works! This needs fixing as soon as possible, many are waiting for the gamemto work.
This may be related to a problem with Microsoft Accounts. Minecraft operates normally after uninstalling and reinstalling the app. It is only after signing back in to the Microsoft Account that the problem resumes. This is the same for everyone I know. Please fix this soon.