Transaction not yet indexed

5k21EBzCWoFtMhyd9EaQqncANm1QTEXjK5wFBBauUUXGb9nAxJFERTkKDLqjoDkCLio892z2nmF2PT6US7TrJP5G

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