Hi,
Think this is a known bug, but my railgun manufacture is stuck. I have demolished and rebuilt several times, and still no go. My large vehicle assembly did the same, but at least stayed untuck long enough to get a few vehicles built.
Additionally, I am wondering about non-trade surface missions. The Repeater helps find these, I think? These dried up a while ago, I can still find some with the scouts by scanning. Is this a feature or a bug?