Because if its not, my character's purity of body feat should have protected against it right?

For some reason, it looks as though certain feats (particularly Purity of Body) aren't being properly handled. I'll add additional code to check specifically for those next time I work on the mod, which will be either tonight or tomorrow afternoon depending on how quickly I finish this problem set.

Should be fixed as of v758.

Oh, and Corpse Blight isn't magical.