Impossible to invite/join a friend

[neco-coneco]

Im playing from Windous PC store, and my friend is playing from Steam, and from before this 1.0.2 update its impossible to join a game for me. My friend is not visible on the "join a game" list, and the join button in community friend list Xbox app is always off. I tried everything, even reinstall the game, but nope... I played this game with my friend before with no problems until now...