Transaction not yet indexed

55NU919azk5i9AK6cXd4sgdfVXvfx7zGv2GoTgnNd5EUX6MF8NRBQFdM5yB7cGcPXf85raqTG8QN7K1N2fVddsWJ

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