Transaction not yet indexed

ECU6TepMfXx9zcbok3eGPSGh2LwfamdCu6xK1Zktq2pkP3nZUoqsFP1HqEsZTXd4Tot5A97m3Dcd9R2goCid38Y

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