Transaction not yet indexed

278SLXX3UE8fENdAL5khgwqyGQPA7Bq9C9QrPUx4AiFWcUYVrVm7QfjW3cxME1z7bYDFd4H16nmUWM28ZYECTGrq

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