I have a Xbox Game Pass Subscription But it doesn't allow me to play the full game, It only allows me to play Demo

I have the game pass, and I've downloaded Minecraft, On the 21st December 2021 I was able to play for a few hours. Tried Logging in on 24th December 2021 ( and onwards) it says I do not have the full game, and that i can only play the Demo.

There is a bug