Transaction not yet indexed

AmUDzQC2ZF4TTYSGNitZEjwNLWHi9Dwwk5zKXnj3vLDQ5Po6hfaopb7x1WDApGi9oYYkocMSaWC9MZsKCFYgun1

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