Transaction not yet indexed

21XXkXC4cwwPJL5fyhq88FBoRVQ64saDbD5nAgbEUfF4rzyFaVgzr3Kfj8jFZaR9Wconqhs4iy7tkpKLHyKzZa3U

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