I am having the same issue with the online version I just downloaded today. It is showing a negative in the Gross Income limitation, taken from line 28 of schedule C , which is total expenses rather than line 29, which is tentative profit or less. It should be very similar to last year for me, but it is showing a negative number, which then says I do not qualify for the home office deduction because my net profit was zero or less. This does seem to be an issue.
I did find that the error is corrected if you go into form 8829, Part II, for line 8 calculation and enter 100% in B. All the calculations are then corrected. I am not sure if a question is missing somewhere or if it was not transferred to the calculations page.
