I'm doing some testing of the earth-mars freighter bug.
To start off with I created a fresh game and let the computer design ships for me. I took its freighters, which are pretty standard. 5 cargo holds, 2 cargo handlers and 1331 km/s speed.
I set them up on a Earth to mars Automated mine run with the cycle moves box checked. There seemed to be some problem with clicking the 5 day advance button. Their orders would be cancelled with them ending up at mars. Unsure, but this might have been something to do with 1 day subpulses being set. This occurred when earth and mars were about 30-45 degrees apart in their orbits. A test of the 30 day advance button caused a decent length freeze, about 10 minutes, but enough time allowed things to work itself out and no problems were seen afterwards.
As mars and earth approach at their closest, I'm unable to force any problems to occur short of advancing another 30 days.
At about 10 degree seperation in orbits, the cancelling orders problem occurs again, only with subpulses set to 1 day.
At this point, switched to mines, since automated mines had run out on earth.
At about 20 degree seperation in orbits the deleting orders problem started occuring even at 6 hour subpulses. Seems to occur every two clicks of the 5 day advance button whether set at 1 day subpulses or 6 hour.
Tested it at 1 hour subpulses. Seems to do the same thing.
Every time an event comes up that says unable to load or unload the cargo at the place.
Haven't gotten the 22k+ orders problem yet. Will do further testing later and edit it into this post.
TBC