Somehow my character is becoming stuck in a really shallow crevice in the floor in the Ciruth-Nur bringand cave. As soon as I move up the stairs to fight the Tarkrip leader, I fall and slide down into the crevice, and the game won't let me move out of it no matter how much I try.
But it got even worse from there. The first time this happened, I transported back to my milestone. It happened a second time, and waiting for cooldown so I could transport again, I jumped around near the edges of this area, and I became trapped even further, eventually to the point that I could see only black around me. By that time, the game would allow me to move around freely, so I began to move towards where the cave exit was, with the hope I would be allowed to leave. Before I was able to get far, however, I was transported to Archet -- except a version of the Archet map which is empty of all buildings and people, and which won't let me move anywhere because of red force-fields that come up.
At any rate, I'm still waiting to be able to transport again, and hoping the next time I go into the cave I won't experience the same bug.