Transaction not yet indexed

MRWkUMzRjAdQf19pgMmsP8bs78j3t8Nv5ddbj7t7N23nZD5RFit8fRiNwYZat3QiLSk76Z2yJ2su3wfUe6iggm8

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