Please see this TurboTax Help article for information: What if my IRS refund is taking longer than 21 days? You can also see Employee TurboTax Specialist CassandraLO's explanation in a similar question: WMR Bars disappeared. Is this bad?
Beginning with the 2018 tax year, there is no more short or long form. The only forms are the 1040 or 1040SR. The 1040SR just has larger print for seniors to make it easier to read. Your tax calculations will be the same and you can itemize whether you use Form 1040 or 1040SR.
It may be that your Social Security income was not taxable. Please see this TurboTax Help article: Is my Social Security income taxable? - TurboTax
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