Issue description
It has slag in it

It wants to deliver here, but it should be able to deliver to the storage. Setting both slag crushers to deliver off causes it to deliver to it.

Slag isn't even allowed in this dumping area. I've seen this kind of thing before, where a truck assesses dumping in an invalid area over and over for some reason.

I have a perfectly good slag dumping area here

BTW, this is right after loading from version 3c to 3d.
Reproduction steps
Dunno
Game version and build number
Update 1 0.5.3d (224)
Operating system
Windows
Attachments
Slag Truck bug.save
Files not imported: Slag Truck bug.save