Gorbat Pride Boss Invisible/unattackable

[mrpickles]

During my fight with the main boss on the bottom floor of Gorbat, I ended up using a movement infusion to distance myself from him and his pack. I then killed the pack one by one and autoexplored until I finished the area, but never ran into the boss again.

After some searching, I found him... sort of. He was invisible, but kept casting talents. I tried casting my aoes where he seemed to be, but they had no effect. I did this for quite a long time. All the while, he would cycle through his talents, but without really hurting me. He never moved from that spot.

I couldn't "Inspect Creature" on his location, or any location around him.

Eventually, after reading a little online, I decided to try leaving Gorbat and deleting the map file to force a respawn... but now he doesn't seem to have spawned at all.

Any solution or do I have to scrap this character?

Edit: This seems possibly related: http://forums.te4.org/viewtopic.php?f=42&t=30955