Can't File Electronically Form 8615 filing status should be blank

Trying to file my 21 year old daughter's taxes and it won't let me. At the last step, it keeps looping with this warning:

Form 8615 filing status should be blank

Can't tell what needs to be fixed. The child is not claimed as a dependent on the parent's taxes and covers her expenses. What needs to be fixed? Her tax form doesn't even mention her parents.