Transaction not yet indexed

6688PMGeU7z2pdkhwsreHoDHS1eiKuKJcCi8p8MQq6WZevwGDXUi8pWVNHhX7ijy57aXdcW4F35iXdW6NP4GGJ33

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