Transaction not yet indexed

MP77pLDfG4J7GUHwRL5w9mQ6cVEoZzspYvgN9QRprpJ99vK5oXWP7eH5f5xDuCANcVeq89koHCRFC3WkRBVcmNZ

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