Transaction not yet indexed

21CkszyGFN2DHCWMtso7bsht3kSsEWQQokVBAkcgxQqdjszrDJmKxfYee5sV3ExecRu7bfE45R3MR4LBtyrLTGsy

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