Transaction not yet indexed

21SbkhqNBMp7ELGhQjktbpbPWuNYaAgeDZF8AE6WCjzqmREvxWqbV5bUdcoYEjU1ApWibVEqWrzeZXZv4sLSABph

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