NJ property tax deduction - married filing separately

My wife and I file separately. We live in the same condo in NJ. We paid 20,000 property tax and each claiming 10,000 on our federal return. However, when turbo tax does NJ state forms, it reduces our property tax paid to only 5,000 each on NJ 1040 line 38a.

 

I thought each of us would able to take property tax deduction of 7,500 but can't find a way to correct line 38a in NJ 1040 without overriding it. But if I override that means I cant efile is that correct?

 

Thank you very much.

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