family share issues

[godwhyith]

i was family sharing a game to someone, they ended up buying it but when they play it still uses the family share version meaning i cant play with them right now any help?

[rawWwRrr]

You don't see an option to change the preferred copy from your friend's to your own? Should be right under the play button. You can also do it from the game's properties window.
https://imgur.com/a/change-preferred-copy-LDmvd1P