The LLC is a non-refundable credit. You need to have a tax liability to offset.
If you are eligible, you have answered something wrong, in the interview. But, a lot of people are just not eligible. See Also see this TT FAQ https://ttlc.intuit.com/questions/3383321-why-didn-t-i-get-a-credit-or-deduction-for-education-expen...
https://www.irs.gov/credits-deductions/individuals/education-credits-questions-and-answers
https://www.irs.gov/individuals/llc
