I have had to override...

I use spreadsheets to make it happen & then force it.  The problem is also enhanced, in the fact that the 199A worksheet does not allow for Special Allocations to the effected Partners to the 754 Deduction. 

I have made a suggestion to Proseries about the lack of Special Allocation feature for the 199A worksheet.  Obviously, this was a problem for 2018 and it was not addressed for 2019. I can only hope it will be fixed next year as the program is probably set in stone for this year.

(Sp Allocation is needed for the 199A even if there is not a 754 issue, as partnership can be complex little buggers).