Transaction not yet indexed

AMm6hSimRRQ5MPDdSikSPu192xZivLWKyYuTax6Rrk6TG2YiZAgUTXHxG5Phbfohr8JkF19ZAxW5nJXGzqjVeqo

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