Cursed

A very well-made, enjoyable scenario; I had been waiting for something like this for years. I played through it using the Elven King. I fixed the bug with SetObjectPos everywhere. I decided to replay it as the Undead King. When moving the Undead King from the path to the Elven camp, the game crashes; SetObjectPos doesn't help. Can you suggest how to fix it? Here's the save file, if needed: https://yadi.sk/d/Epb8ocbwgy1SYw