This error is very much reproducible (TT Deluxe, Mac). As soon as you enter $1 of any expenses, that becomes your loss on form 8829, regardless of the actual profit. It works ONLY if expenses are zero (0), which of course makes no sense. What a trivial mistake (they are copying the wrong line) that cannot be overridden (at least I did not find a way after wasting 5 hours on troubleshooting this problem. So much for calculation guarantee. Huh, enough is enough.
