Transaction not yet indexed

5191PBfe8Rfp2BnUu1MpXFR2eQ4rR2KeLRHvR6aZDpE8WB6qU61sub6ScDSpPDUujJyTzjRH5vffF4aAXNDcFn3S

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