Maryland Pass through Entity for an S Corporation - State Adjustments to Federal Depreciation Amounts

Maryland Pass through Entity for an S Corporation

On the State Adjustments to Federal Depreciation Amounts - Sale of 179 Assets with 179 Deduction reported separately on 1120S/1065, the Federal Accumulated Depreciation always defaults to zero, when in fact the full 179 deduction was taken.  I have to over ride this amount and put the full 179 depreciation amount in this column according to my accountant.  Otherwise form 500DM is incorrect.  Why does Turbo Tax not correct this or is this difference in the main activity (A) above.  Thank you for your consideration in answering this as this can be a costly mistake, if not entered correctly.