Transaction not yet indexed

AUNg5vbEbTrm5qrnnfHuu8C1UHJsBybJA9WcExsUQHUAsEQLuNPVEe6qB4za11MqWNDCMBNSBwurQ75ytZ9smyQ

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