Stuck Elizabeth

I made it to the final part of the Escape mission where the Unknown Man talks to you and summons Elizabeth. During the fight, she went up the exit ramp and then she got stuck. After that, she couldn't attack me with any spells or move anywhere with her teleport, and I couldn't reach her with any attacks (the mouse cursor became a little sword with a crossed out circle). It appears that either I knocked her back out of the map boundary or she teleported there herself. This made the mission unwinnable since I couldn't keep fighting. Maybe we should put a note on that mission saying to be careful with knockback or something, if this happens to someone else.