Retirement tax questions

Thanks ,

to be honest , not a fan of doing workarounds for financial software I have purchased.

Not issue in 2017 but in 2018 & 2019 an issue. Did not notice on 2018 return.

This is what I have....

Can change Out of state Gains and Other Subtractions ( those calcs are accurate) but not Retirement income Dedcution

I could just do a  manual SC1040X for 2018 , then file 2019 and then complete a manual  SC1040X  for 2019 30 days later. Just changing about 2 or 3 lines. But does not fix the issue ( only rectifies my tax return).

What is the best way to forward this issue to turbo tax tech support. Propably have a lot of my fellow military retired citizens in SC that does not realize that this is an issue.