I didn't take an advance Obamacare Premium Tax Credit, but have $0 taxable income. I entered my 1095-A and expected to get a credit, but nothing. Can that be correct?

I didn't take a Premium Tax Credit against my Obamacare health plan because I didn't qualify last year.  This year I should qualify because my AGI is well under the required limits. I entered my 1095-A expecting to get a credit for the Premium Tax Credit I should have been claiming throughout the year.  But I was surprised that TurboTax didn't give me a credit and is telling me I received the appropriate credit.  Is this an error in TurboTax or am I missing something?  Thanks.