Transaction not yet indexed

iS55xNArpdH9MEi7CSA6WvMhxJnASta4UxFZp19LHMPrmjwpbKmWYEHTedDCNfrq3A4ZeBWS8wW7fbuSKmz5ed3

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