I submitted my FED and State returns through TurboTax on 4/13. Accepted 4/13. Authorized payments for 4/14. But didn't pull from my acct until 4/16. Why?

Filed/submitted/accepted returns for Fed and State on 4/13.

Authorized payments for both to be pulled 4/14. Even if the 14th was a Sunday....the payments still should have pulled on Monday 4/15. Why did the payments not pull on the 15th? I received late penalties....again, why?