This might be something with the different types of invisibility. I've had some experiences with the warlock's "detect lesser invisibility" and "detect invisibility" buffs. These have no effect in detecting stealthed NPCs, because they detect invisibility (as in alchemist's invisibiliy potions) not stealth. Unless faerie fire says it prevents stealth, in which case its a bug.
As a bit of a postscript, are there any monsters who actually use invisibility spells, not stealth? At lvl 48, I've yet to find a PvE use for either of those warlock spells.
(I'm new, finally decided to create an accout so I could talk with the greats of the lounge :D )
As a bit of a postscript, are there any monsters who actually use invisibility spells, not stealth? At lvl 48, I've yet to find a PvE use for either of those warlock spells.
(I'm new, finally decided to create an accout so I could talk with the greats of the lounge :D )