Bug TurboTax Deluxe Mac - Commuting miles

I've entered mileage for Schedule C but the REVIEW says "Commuting miles is too large. Commuting miles (1,200) plus business miles (3,031) cannot exceed total miles (5,256)."

 

1200+3031 = 4231 and is clearly less than 5,256. 

 

What could be the issue?