I've broken into the Institute, doing The Nuclear Option, and I've just relayed the Minutemen into the Institute as well.
My next step is to "Talk to Preston Garvey", and I had this quest (selected), plus one of dozens of radiant quests (unselected) that I need to talk to him about.
I speak to him, and he completes one of the radiant quests, and gives me a new one. (Seems odd to do this in the middle of the Institute raid, but whatevs.) However, when I try to speak to him again regarding the Nuclear Option, I can only trigger the typical chit-chat, as if he has nothing special to say to me.
I can't find a known bug on this. Any ideas?