Issue with 1099-R - Gross Distribution and State Withholding

TurboTax flagged a supposed error on my state return regarding numbers from a 1099-R.  It's telling me that for an eFile, the NY State withholdings number cannot be greater than or equal to the Gross Distribution or State Distribution number.  The 1099-R did not include any state distribution number on the form, but the withholding number is indeed lower than the Gross Distribution number.  So I'm perplexed as to why TurboTax is flagging this as an error.