I did one with a Tesla Model Y yesterday and everything flowed perfect, and landed right where it should, so Im thinking you have a data entry problem, not a program problem.

Using the 8936A worksheet, Line 8 needs to be  Yes (I think that may be where people go wrong, it mentions lease to others, but it says did you acquire the vehicle for use OR to lease to others, I had to read it out loud, I saw that word lease and immediately thought that should be No), and then YOU have to enter the credit in Line 9 then the figure flows to Line 12 and Sch 3.