Turtle caravan bugs (specially around mining)

Conquest - Shards of misfortune
Windows
DirectX

I had several bugs multiple times, but sometimes they wouldnt occur, so they were kinda reproducable but not reliably reproducable if that makes sense :D

1st: I put down a caravan in an area not adjacent to my main area to mine stone. When I wanted to leave with the caravan, it duplicated itself. One left in the area, one driving around. (once I had 8/4 caravans)
2nd: When I changed the ressource the caravan had to collect, several caravans changed the same moment. So I could not collect stone from stone golems and iron from iron golems at the same time. Sometimes they would just not collect, even when the ressource was right.
3rd: And that one was horrible! Sometimes I would move a caravan from an area I had colonized, and I lost the area (buildings burning, workers leaving). On the other hand sometimes I kept an area somewhere on the map, after the caravan left, even when I never colonized the area!

And I had multiple crashes.