Transaction not yet indexed

21SMDM64npsNyfnmH2qBK6YfeEq3ttxSdF9ApUka7p3BR7FfaFd5JKuE6bdeEbQmUeby2UDSC1UjJE9i5J649yne

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