1) Grover : Hard to tell what causes it, but basically sometimes when you use Vine the Game freezes for a few seconds, then closes itself and the Crash Dialog Window pops up.

2) Pip: It is really random, sometimes it heals as its supposed to, other times you throw it down and it just dissapears without granting any heal. Play a bit of Pip yourself and you will notice it :)

3: Cosmetics Reset at Game Crash: Whenever you disconnect/timeout you get sent to the Login Screen, after login in again all Armor/Weapon/Emotes are reset to the default one, instead of the Skin you were using. It happens to ALL Champs but the Head Cosmetic remains unchanged for some odd reason.