Transaction not yet indexed

UMcdtdpmLvHop4y3p7xssXxF5UEAr2QoG9VKe1ZV1P6Aw2xxmCyuwktXEVvxn1WsjaEU12TQxUKeNabNN5GJsKE

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