Feign Death and Casting Mobs

[TheDudeAbides]

I can't remember how FD worked in classic, but did it interrupt casting mobs?

The problem I keep running into is that you feign but a mob or two is casting. Even if I'm behind a wall out of LOS the spell hits and breaks FD. I can be literally behind 3 walls and I'll get hit with a spell breaking FD.

Working as intended? Shouldn't it interrupt casting?