Bugged Interaction with Warwick's E and his auto attacks/R

If autoing

1. Cast E (note that this wont cancel your auto)
2. Let the E recast by itself and have it be as you're about to get an auto off
3. Your auto attack is cancelled, and Warwick cannot attack or cast his Ult during the howl animation.

If ulting

1. Cast E
2. Cast ult during howl animation (wait for it to recast by itself)
3. Ult waits until E animation is done before going

Messed up the first on the first try with the ult, but I can recreate it 100% of the time.