The system does support fractional addresses — it just needs to be entered in a specific way. Try this:
Type your street address including the fraction the way you'd write it on mail — for example, "8 1/2 Main St"
Press Enter after typing the street address
The app should then let you fill in the rest of your address manually
If the "NEXT" button is still greyed out:
Try entering the fraction as
1/2rather than.5or a special fraction symbol like ½Make sure there are no extra spaces in unusual places
If neither works after trying different formats, contact support and we'll get our engineering team to look at it.