As subject says. When the undead climb into a non-horizontal position, they become untargetable. I thought this was a positioning or line-of-sight error on my part, but after numerous attempts at repositioning, I found they could not be targeted when standing on a wall. Incidentally, spiders do not have this same glitch. Not only does this make combating them difficult, I found they would "hide" from my light source by climbing onto a wall surface and then stay there and not engage me, making combats impossible to finish, unless I used area of effect abilities. This makes it appear to me that the AI knows it can't be targeted while climbing.
Spider-climbing Undead Untargetable
2 weeks ago