Interupted spell without getting hit?

[NJA]

If you were in the AoE circle when the mob finished casting (ie when the circle disappeared) then you will get hit by the attack - even if the attack doesn't go off for a couple of secs and you've moved away by then. If that's the problem then jut make sure you run out of AoEs quicker. If it's not, not sure what could be the cause - could be a delay in the 'interrupt' message as above poster says, again meaning you had actually been hit already.