Can’t access the full game on steam after my brother bought, in share steam

I downloaded yesterday friend pass, my brother bought today the game I’m in his family share… 
But when I open the game it’s still saying demo and not full version, why? I want to play with someone else, and my brother bought it and put me on family share 

but when I’m opening the game it’s still the friend pass version, I tried reinstalling it didn’t work, someone know how to solve it?