Transaction not yet indexed

668TUXABzrHAcU6FWFtxV9jaMYqLGXY4tnpKGyVT4XojUJF3RNfWHrpGuLgoKFMKSGxskKev3PmcS2ZEJ7Q3bgHc

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