I have a similar situation. My husband had tax withheld for state and Philadelphia so I entered the credit. For some reason I had no NJ tax withheld just Philly tax. Does that mean that I can not get credit for taxes that I paid to Philadelphia? Technically, I was not double taxed, but Philadelphia tax is high and if I don't enter it we owe a lot to NJ (much more than I paid to NJ on last years W-2).
