[Gameplay] Bewitching Tristana Bug

Hello, i don't know if this is a one time occurrence but it happened the entire match. when I would go to throw my bomb on Ziggs it would vanish, make no noise, and produce no visual explosion. When I checked the replay using LoLReplay I could see the bomb was on him, but inside of his model (clipped into it) This made it impossible to know how much i had charged the bomb. Ziggs was using mad scientist skin, don't know if that would change anything.

Frequency: Every time I threw a bomb on ziggs

1. press e
2. bomb attaches, and immediately vanishes, no visuals or noise is produced
3. bomb is still there in replay, but is clipped into the center of ziggs model

I have attached a screenshot of the replay

http://imgur.com/gallery/wM7Dt

Anyone else seeing this bug?