If you can't do this without overrides, either you are not entering it correctly or your rollover included some amount of your RMD which was not eligible for rollover. A permissible rollover entered properly combined with a QCD will result in TurboTax including the notation "STMT" next to Form 1040 line 4b and will include a statement showing the QCD and rollover amounts separately identified.
Try deleting and reentering the Form 1099-R.
