I noticed that if I researched something that took 4 research stations and researched that item, that if I dismatle/skuttle a station that would bring me under the 4 previously required, I won't be able to build another structure gained from the previous research. For example, I researched Media hubs pretty deep into their abilities like almost no where to go in that direction and then I tried to take down labs to clear logistics space for a crap load of media hubs, but all of the sudden it told me the pre-reqs weren't met. This has to be a minor bug, yes?