Hi everyone!
I love your work, and I'm very satisfied with Seeds of Change!!
As the title says, the key to "reset" Scenario progress is greyed out if there are no savegames, but if progress has been made and savegames have been deleted afterwards, there is no option to reset that progress and next scenario will have the buffs from previous attempts. This is what I experienced in "Seasons of Silver": I made a first attempt, unlocked buffs for following attempts, but wasn't satisfied and wanted to retry from scratch, so I deleted all savegames. There was no option to reset scenario progress so I assumed that I would have started without buffs, but I found the buffs (Trading Posts / Hacienda built) on the next attempt.
I can forward screenshots or other material if needed.
Keep up the good work
Acidello