The portion of tax exempt dividends that are taxable in New York is not carried from the federal return to NY IT-201 line 20

I have exempt interest dividends that are partially taxable in NY.  I entered them when working on my federal return and when prompted I specified the amount exempt for NY and the remainder as exempt from multiple states (ie. taxable in NY).   This should have resulted in IT-201 line 20 being updated with the non-NY exempt amount but it did not.