Transaction not yet indexed

Am9nExXqh13PpkmQGbb8hcVawJVsHBzPaKS4uQMyCqGUGTiaY48idJiHCKJU5qgcy6Cmd3JWbuxqT5uosBZHo6h

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