some champion glitches, zed and tristana

SO i just played zed, and sometimes, as much as like 4 seconds after my shadow goes down, i can still see the target reticle for my Q from the spot where the shadow was. it wouldn't happen everytime but it happened sometimes

and tristana, i used my W, we killed the vayne, and then about 4-6 seconds later we killed the alistar but my W-rocket jump cooldown was not reset, and i had only used it before vayne died, it was near simultaneous so that one would be understandable if it wasn't reset, but alistar's death was a good while after vayne died and was obvious that it should have reset the cooldown. as far as i know that was the only time it happened i wasn't using it too often after that.