So, in the orders for my freighter task group, I have it set so the primary order is to deliver automated mine to a mining colony and the secondary is to pick up an automated mine from a population. However, my problem is that the ship (which has 25k ton cargo) will load an automated mine, then try to load a second even though it can't, and it never delivers the mine.
I've tried swapping which one is primary and which is secondary but that didn't work.