Transaction not yet indexed

21M63RkSCFtkqPFP9rryf1LKSb94s8t5oe4MfpQaUctT8pKt7AHsvWK5Wcd6SvMcgsaXf4Fir2tRBhtYzZ58npm4

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