Thank you for the quick reply!
I feel embarrassed. I hyper focused on the red text and just didn't read that the game recognized that I repaired the mill on the line directly above it lol. I'm assuming now that "Turning a New Leaf" completes itself after I move into Chapter 4. So I'll just return to proceeding with the main story.
I have nothing but praise for the game btw. I originally played it a couple years ago and loved it. About ~6 months ago I felt like checking back in to see how it progressed. So I started up a new save and enjoyed every minute of the game's content and story. I'm just now picking back up where I left off, and it's great to see so much consistent activity. Keep up the great work!!