[Nisgeis]

That's what the stock behaviour would have been if it had worked, but they never came to investigate. Now they come to investigate, but the next part to get them to spiral search around also wasn't working, I've fixed both parts of that which will be in the next stage, but with the version you have, they'll steam around the last contact point. I'm not going to give any in depth details, as that would probably spoil things :-).

They drop DCs whenever they pass over the last point of contact, in a stupid way, so I will also fix that with some heuristics. I don't want to go mad and change loads at a time, as it will be hard to track what goes wrong. So, I'm keeping it as a progression for the time being, e.g. fix the first part, then the second part.