Quote Originally Posted by Korbei View Post
OP is right. Spells are interrupted by being hit while Stoneskin is up. This should not be the case. If receiving 0 damage won't wake me up while I'm asleep, then receiving 0 damage should not interrupt either.

Consistency.
I'm glad to hear I'm not the only one. Visual proof of this is nigh impossible to produce, but it does happen.