Transaction not yet indexed

21Nb3NZX3LTHFe9EezanvG4SjGuSDjM4kxd4fDiWXJ6nEdhTjjBbTwHFuq56rzwwNh1NFdyzKMdKnyDVxqZGKoL5

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