Transaction not yet indexed

WF6tSvKD88Zrd5V2TsHQDCcJQaWC31GBNARFD55WBQHhNe42ud7FmUM168TLKPHzeAk8n2Y7cq1AYoPLBkfRWz5

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