Transaction not yet indexed

MN66kCQHXQDwt6Kv9fJeskyGC3GZZbNWSb9SPDGuPSsQFMJXAq4paKoufcA3PoztpxenmNfx1e9tF2HfwPn8tfK

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