Installment Sale Property Type Code - e-filing reject

See message below. I have entered the property code. This return was filing electronically last year with no issues and had the same 2 forms 6252 reporting installment sales of businesses. Any ideas to get this e-filed? The client is due a big refund and I would hate to tell them they have to mail it in.

Error Message: Data in the return is missing or invalid. Please double check your entries.

Solution: The IRS has added a new requirement that every Installment sale both past and current must have the Installment Sale Property Type Code entered. Please verify that a valid selection has been made from the property type code table. Please review the reason for the reject. If necessary make the appropriate change and re-submit this return electronically. However, if the reject continues you may want to file this return via U.S. Mail. To file your return, print it and mail it to the appropriate taxing authority.

Code: /Return/ReturnData/IRS6252/InstallmentSalePropertyTypeCd