Merc Bugs

[Baajikiil]

Every once and awhile while I have an act I merc, I notice that when she casts Inner Sight on monsters (unclear of EXACT circumstances - requires further testing) and either I leave the area or zeal at that exact moment, the lot of monsters that are affected by the Inner Sight are unhittable, but they can hit back

This wasn't by any chance in act1 catacombs was it? There currently is a bug where ghouls and tainted sometimes spawn unhittable(by melee attacks). Only "ghouls" and "tainted" appear to be affected, so if this is another type of monster, it must be something else.