So, I'm scouting around, and I pop my scouts into a new system. It has an AI Core Shield Generator A, I notice, looking at the map intel summary. It also has a fabricator. Then I notice... it doesn't actually have an Advanced Research Station. Well, it had one.
I reload a save and try again... sure enough, moments after a scout enters the system, the ARS explodes! (Actually, it's fast enough I failed to catch it...)
I've attached before and after saves, as well as a screenshot. I also have a sneaking suspicion this should go on Mantis soon enough...