Retirement tax questions

The new CARES tax changes are now available during the update. However my Taxes owed has changed significantly when using TurboTax deluxe although I rolled over my RMD distribution back into my IRA. This rollover should not be taxable. However, I owe more taxes when doing this rather than not  including any RMD distribution in 2020. Is this a problem in TurboTax as the IRS says the RMD is not taxed when returned to the original IRA account?