Transaction not yet indexed

21Nk7diosMCqG5uuoQqVRXEnET6xajyTJLgMVRubhAcjyMbaGMBqozgmLGFrMF7r5rqESKevFUu2daXxNZLV5TRm

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