I had the same problem. I think I figured it out. As my ADU was not rented for part of 2020 due to Covid when asked how many days it was occupied and how many days personal I subtracted the occupied days from the total number of days in the year and put in that amount under personal days. I was not able to add any expenses as other people have reported. However when I ran the federal review it came up that I should have put zero for personal days. When I did that all the expenses I had added showed up.
