Transaction not yet indexed

mpmmj8dGaAkaDqNsHqg2W2p3H7S5yatTZMMVc9dDpE5E2v7DnMSm1KPBVKJGQS6eMP3ofE7fDAx2PLp2QRqfVTA

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