You're still in the wrong section then. If you want to claim your child as a dependent, you should not be asked if some other relative provided support. The only questions you should be asked are "did your child live with you more than half the year" and "did the child earn more than half their own support."
Turbotax changes the IRS question "did your child live with you more than half the year" into the question "how many months did your child live with you" so you need to answer at least 7, or probably 12 if you all lived together this year.
You might be asked about the child's other parent, but you should not be asked about support provided by other relatives unless you answered a previous question wrong and got diverted into a different section of the interview.
Try deleting the child completely and then re-add her.
