Transaction not yet indexed

XD6rppRUEZdmqhma2GQGiMNVmQSCsZ1rEpNwpQmfR5Ey2iVcioWAvN6Sf4zgKLtM3krTnPFQKDZDPkWBWeLsp18

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