Transaction not yet indexed

21MCNrfwEsm4N51Sb7SXFjNfQSwkt91A4AbDfawck5T7zpcwb5eRZf4gSi7aDx4oR1PywtmbKsXKHvCn1JvkPAB8

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.