JC, if this is the case, then it seems that there has been a change to the loader. You do have a choice which object in your scene is to be arched around (Panning is a real deceptive term for an archrotate camera, use rotate or arched). I was using a track to constraint in Blender to tell which one, like so:
You get a blue line from the camera to the object, in this case Cube. I just tried to export that picture, and I get the same frozen camera result.