Transaction not yet indexed

4E21hwSev4q1ud6ujwDJ8fGS18HofMWKaPfjnr2uAjaMPsM6Aq51a3K5AMahLHB2zr2j4e5VCCVPsmUrStYQb8Md

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