Tristana interaction bug

None of tristana's interactions seem to work.

While taunting any other yordle, jinx or caitlyn, or even when super galaxy rumble recalls near her, there are no special voice lines. I tought they were just rare, but after ~100 games, I still never heard one, nor did my teammates. even though I tried a lot, while standing right in front of them, neither the joke nor taunt worked. This problem isnt really game breaking, but its been around really long and it would be nice if it got fixed. (How else will we know wether teemo's mushrooms are his rations or his ammo?)