Amend 2021 Return

Good day.

I received SSA benefits in 2021 which I claimed on my 21 return. SSA determined I was overpaid and recovered the whole amount in 2021 and 2022. I'm attempting to amend my 2021 return in TurboTax by setting received SSA benefits to zero but the app now has a calculation error on the "what if worksheet" and loops. There are no editable fields in the worksheet dialog presented.