If you decline going after Stellarite power the first time Sophia brings it up (I couldn't afford it at the time, in a multiplayer game), then attempting to talk to Sophia about it later goes to the precursor reimagination project instead. I've put together a workaround

In the mod folder(workshop\281990\1419304439), go to events\acot_precursor_databank_events.txt
Look for the event with
name = acot_precursor_databank.2.e (not d - that's the actual reimagination project button)
then, replace
country_event = { id = acot_precursor_databank.9 }
with
country_event = { id = stellarite_events.2 }
and then you should be good.