So I spent 3 entire turns marching in and out of the NORTH portal on the 2nd level/circle, to no avail. No movement to next level, no temptations, etc. Nothing. No enemy army present (it was already murdered) either. Teleport Stance doesn't work in Slaanesh Realm (but I think that is supposed to be that way) so I can't use that. I even went around to the SOUTH portal, and had the same problem.