Transaction not yet indexed

mPL8oycqxKcpGkEWUnUAgz9hUXCPVS5q8w7nyeYdMZPV3Sbx2gGffL1cNtMufMkQ1UDtfeHUEbPJPC1xqiJAm21

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