- Changes are ignored.
- Changes are taken, and then switched back.
- And my favourite, changes are made, but then the program does something different anyway. See picture. Here CW changed the Cyprus resource to be traded to France. But for some reason it used 4 CPs on a route that should only take 2 CPs. And when I looked at it I saw that the reason was that the route still sent it UK but listed it as going to France...







