Transaction not yet indexed

AMUMm16daNhYVPRuovJ8u2wNy2yDe5Tr6BBCg3yFggAzXsju5DMtuvth7K496Z8dvJRi6heiRf668EK6vH1dNy8

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