First of all, unless those conventions adopted rules to the contrary, under Robert’s Rules you cannot limit nominations from the floor. Needs investigating.
If no business was done, your old leaders’ term of office has still ended. You are leaderless until things are reconvened. Again, check your bylaws/constitution.
To your first point, the county meetings prior to the convention was where the further nominations did not occur. Yes, That is what pissed the rest of us off.
The parliamentarian and bylaws (party rules) were consulted at the convention. If it is different than I reported, it will be changed above my pay grade.