Some spaceports not building fighters

[Grotius]

All of my small spaceports have the same design, which includes a small fighter bay. But only some of the spaceports ever build fighters. My home spaceport never does, which is very frustrating. Nor does my #2 spaceport. My ghost spaceport does. (I'm playing as humans.)

The recalcitrant spaceports seems to have plenty of construction materials, and in any case those don't seem to be required to make fighters anyway. It doesn't seem to matter whether I place the stations on manual or auto. I have station and ship construction on manual. I've tried clicking the 'manage fighters' button, but it only gives me the option to upgrade to the latest design, and there's nothing to upgrade.

Any suggestions on how to prod my small spaceports to make fighters?

[OrnluWolfjarl]

Over the construction queue it should tell you the amount of fighters the station owns. Does it say 0?

[Grotius]

Thanks for your reply. I think it says zero fighters? Here's a screenshot. As I mentioned, some of my other spaceports, using the identical design, do routinely build fighters. Maybe I have some setting wrong? Or maybe this is a bug?

[OrnluWolfjarl]

Yeah, that means you got no fighters. Probably a bug, unless the resource shortage is what's causing it. But ships with hangar bays don't carry resources anyway and they can build fighters when on duty, so... Yes probably a bug