Why did my tax return reduce after I rolled over a roth Ira to a roth ira

[SusanY1]

If the rollover was an indirect rollover and the code on your Form 1099-R doesn't automatically reflect that it was a rollover, it is likely because TurboTax hasn't yet asked you the follow-up questions that will remove it from your taxable income.

TurboTax doesn't ask those at the entry of each 1099-R, but instead once the entire retirement income section has concluded so it can also check for any other exceptions to taxes and penalties.