ToME: the Tales of Maj'Eyal

I havent seen it mentioned elsewhere. But as an alchemist, my channel staff ability makes invisible enemies easy as it will auto-target them, even when I can't see them.

I've noticed something similar myself - Auto Explore would stop claiming I noticed a bandit or something, but nothing on the screen. If I trigger Rush, I know exactly where he is.

I'm wondering if in these cases I actually pierced through their stealth/invisibility, but graphics didn't update? Same way as when you cure confusion with a wild infusion, but while the effect disappears, the screen remains all trippy/blurry.