I seem to have developed a trading "black hole".
Every freighter that the lines have built makes their way to a smaller colony, and float there.
For example:
Mars has a export demand of 1151 Precious Metals.
Earth has a demand for 900 of the same.
Right now there are 10 freighters floating above Mars w/ Precious Metals, and the info screen says that the destination is Mars.
So they apparently drift there waiting for a demand (as opposed to surplus) to open up.
I also have a freighter drifting above mercury waiting to deliver spices, but interestingly, spices are neither produced or demanded there. Again, its "stuck".
The last freigher is drifting above Titan, again waiting to deliver metals to a colony that produces them.
What gives?
You could try the 'Clear Orders' button on the shipping lines window and see if that helps, although I am not sure if it empties the cargo holds or just forces the freighters to recalc their orders based on what they currently have in the hold.
Was confused as I had no "clear orders" button on the Shippin Line menu. Checked and I am using v. 4.2. I will repost to the appropriate thread. Thanks for the guidance.
edited to add: using a little hunch, I found I could download v 4.2x ( 4.25 by the help info or 4.26 if you believe the title of the zip file) and...... voila !!!! saw the clear orders button. btw, clear orders clears orders and cargos.
It was a little confusing, as I had seen nowhere in here on how to get a v 4.26, and the only download info mentions 4.2.