Why is TT forcing a 100% income allocation to Michigan on MI-4797 even when I say it is derived in another state?

In entering the sale of a rental property in NY, and reporting it on my Nonresident NY return, my Michigan Resident return walk-through allows me to change the gains it pre-fills for MI to $0, but when it prints the MI-4797 form it keeps 100% on all the lines in the boxes for line 19.  I've NEVER tried to override anything in TT in my 25 years using it so I don't want to start now.  Everything else should be correct as I've spent the last year making sure every asset has been properly depreciated, pro-rated, and gain reported across 3 returns. 

 

Here's a screenshot of what I'm talking about.  If this is just TT behavior that won't cause me any issues with filing I can stop driving myself crazy reading every MI tax code available trying to find where I went wrong and coming up empty.  Thank you!

MI-4797 SS.jpg

@TomD8 ðŸ™‚