I purchased myself a shiny new wand of neg engery protection this week. Eager to try it I used it in the Goblin Fort, as soon as I saw the room filled with skeleton necromancers.

There was no dispel in my log, yet every single negative energy attack, (which I assume was just a neg energy burst, although my spllcraft is too low for me to know for sure) did damage, and I lost strength points in abundance.

I don't know if those skeletens have some custom ability, or if there is something more sinister at work.

It's 100% nothing to do with the Skeleton's spells, because whether the magic is inflicted magically or through, say, items with "+1 negative damage" on it, NEP will always block all of it.

Are you sure you used the correct wand? There should be a whole list popping up in your 'Positive/Negative bonus bar' in the topside of your screen.

Last I used NEP myself it worked the way it should, during the Goblin Fortress. That way a potion and not a wand, though.

Yeah, I have the screenshot, if anyone is interested. It shows Aledrec using the wand, a whole lot of spells from skeletons, then me losing a stack of health and strength. There is no dispel in that time. Even if it was a weird lag error, I was hit with another one about 8-10 rounds later, and it still didnt stop me losing strength/hps.