A bug was preventing attacks on inactives who have never performed an offensive action. It has been fixed and you can now clear inactives regardless of their attack history.
Not the case In manthanos it seems, still can’t clear inactives.
Will it also be possible to activate the find planet spell. Or will family leaders be able to remove inactives even if they have other planets?
Should be fixed now with Same-Family Deployment Fix.
@Rev I’ll look into that as well, inactive clearing still requires removing non home-planets first.