For a 1099-R, box 4a withholdings can not be greater than or equal to gross distribution the Holding is less than the gross dist. Why is this coming up as a review, TY

For a 1099-R, box 4a  "NYS withholdings can not be greater than or equal to gross distribution  the Holding is  less than the gross dist. Why is this coming up as a review, TY