Property tax is not affecting my estimated refund

Hi,

While entering in deductions and credits putting in the mortgage interest properly affected my estimated refund - however when filling in the property tax it has no effect (regardless of whether i set it to 0 or the entirety of my salary). All the other public answers to this question mention it not having an effect unless your itemized deductions are over the standard deduction amount - so lets be clear that's not an issue here - my itemized are well over the standard (just the mortgage interest is several times the standard deduction).