Transaction not yet indexed

21MkZ2QhnMNWJ1J3TKWvUPKxCnArHowcTHYUR3M4Eq21Umms5QWNCmgbHUtSCrM2khkkfmDkVHxBtZX7e3d8vP45

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