Long time running KENNEN BUGS!

2 Big Bugs with Kennen. When you wait 4 attacks to finally get your shuriken proc. If you throw it at a minion that dies before it reaches, the shuriken proc doesn't stay with Kennen for the next attack (with Caitlyn on her headshot proc if the intended target dies before the shot lands her headshot proc stays with her, it doesn't go away and she doesn't have to auto someone 5 times again to get it back). I feel that this is unfair or a 'bug'. Also when activating his marks of the storm, Kennens 'W' goes on cool down even when the target dies before the activation goes off, leaving him at a loss of a cool down and loss of energy spent and having not hit anyone with the skill. This also happens if the mark of the storm wheres off right as you activate 'W' with Kennen, ability goes on cool down, loss of energy, and no benefit of having used the skill. I believe this is a 'bug' as well as with Caitlyns Ultimate, when her intended target gets killed before she can fire her snipe ult, it gets 'refunded' to her or doesn't go on cool down and she doesn't lose the mana for it either. Please look into this as these bugs have been around a long time.