NCperson - Thanks for your help. Still can't seem to "fix" the issue. Maybe an "undocumented" feature in TurboTax because the numbers seem OK. The FixIt button doesn't fix anything and has no suggestions and clicking "Review" doesn't do anything helpful. I may fiddle with it for a little while and try another electronic submission. If that fails again then I will just submit the amended return on paper. I must admit that I've been a little disappointed in the 2021 Windows desktop version of TurboTax.
