Transaction not yet indexed

21iffZzCthGoXP5iMuiwm1a2FPt8aqfzWFjzcxNmRsuX5kDxNg93CBnhG1e7A6MGF2QN9fHVByq7SsLTC8YCSGfW

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