I've run into some sort of odd bug, where I can't research the tier 2 harvester platforms. Normally, the answer to this kind of thing is that there's some trigger tech that needs to be researched, but I can't find anything. The only trigger tech I had available was uranium processing, but unlocking that didn't change it.
Is this a bug? Is there some kind of hidden trigger tech I need to research? I'm gonna try getting tier 2 miners and those fancy floor tiles to see if that does it. If it doesn't, I might try the space trigger techs. I'm just under halfway to the rocket parts for my science platform anyway.
Thanks in advance!