Transaction not yet indexed

MMdkBhucsPutfC6cnkCUyZsPpcf6eM9jky1c2ej3fYq12xRbCpv1U2EAnvxezsSdBvBpK56L6ph1ifNzXMv3y5Z

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