Transaction not yet indexed

5k21KBEG4Cx2SMQBeRPRaYAF3aCXxR2Mgtk494DTUh5GmJs9eDmVZvLCC2BR9fiKCqauebRS5FaqvzhRCdNY5Z2d

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