Transaction not yet indexed

YkMNSaGuAEW1fRq2ebZPrj9mg2Mv7Dn9JqdyaNhG9qQpRdvjyWobHreD6CaFMsXaFQta7fbUtMph7nQrLBAfAk7

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