ToME: the Tales of Maj'Eyal

I was in the Dark Crypt on a Shadow focused Thalore Doomed. I got teleported by some of the corrupters there, and during one of the teleports, I became, well... detached from reality. I could cast effects, but my character was not on the screen, could not be targeted or damaged, and enemies could walk on the tile I was supposedly "on," and generating effects from.

I really don't know what happened, but I THINK something moved to my square in between the start of the teleport and the end of it.