Based on the circumstances as described, the disconnect is happening because of indicating that you do not provide more than half of your support. This categorizes you as a dependent, which raises the Kiddie tax question and disqualifies you from the Recovery Rebate Credit. Your status in the Get My Payment tool may be affected if you indicated yourself as a dependent on your tax return for 2019.
To check your input in TurboTax and address the dependent question, I recommend returning to the My Info section and clicking the pencil icon by your name.
