Thank you for your help!
I went to the form view on desktop and overrode 7 lines in Form 8606. The software gives me warnings on these lines and suggests me to change back. So I canceled all the overrides in Form 8606. I went to the Taxable IRA Distribution Worksheet instead and overrode Line 8 with the ratio using B/(T+R). The software went through checking for error and did not flag on the modification. Is this OK? This change should only affect Form 8606 and the taxable amount on Form 1040, and nothing else, right? Thanks again.
