Mysterios Flag in Summary Screen

[PhantomUnderYourDesk]

I would probably release that Minyan and then save, yes, just because it's strange, suspicious, not even shiny and to be on the safe side as people can throw everything into Wondertrade and GTS - but the decision is yours in the end.

In worst case scenario, there's a back-up save file under C:\users\<Username>\Saved Games\Pokemon_Uranium\Backups, but let us not think that negatively.