Uninstalled the minecraft beta 1.2.0 and re-installed and its gone back to 1.2.0.29 beta

I had the new updated minecraft today (20/9/17) 1.2.0 on the xbox; with the added realms, but when playing it kept crashing so I uninstalled it to re-install and its gone back to the beta version 1.2.0.29. I'm guessing this is a bug