Transaction not yet indexed

56666YvL8MqK1rxBaTQ2TsCWJ85gQD9P2geyqqdp4eKv4sUXEc2xWfqRQCpdK9jtfSyBug4LsviABYFcXwFPCLzQ

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