Transaction not yet indexed

mb6CUsyV9AxBuVAH4Vfd2ZsiTWTTczoUiRLd1ZWymMnbJhPSFNERwLhd5mfcrCjDj7mqWbsRkfZCS9trYhCCbCU

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