I had the same problem. 3 different times I have been on the phone with support and they view my screen. They have seen the problem and reported it. A question is supposed to come up after you enter your mileage but it doesn’t always. It is also supposed to show your previous year vehicle and it doesn’t. When I re entered my vehicle info it ended up having my 2019 vehicle and my 2020 which are both the same in my Schedule C. I was prompted to add all my vehicle deductions again and it ended up doubling everything with no way to delete. I am hoping they fix this known glitch so I can get my free state return if I file by 2/15. I have cancelled and redone my return 3 times hoping it will correct since there is no way to delete info from schedule c and you cannot edit your vehicle info once entered. Also won’t let you trash vehicle info as they verified on my screen.
