Transaction not yet indexed

AmTGTZgggkZmCuD4VPQePr1wYNGeYTZAJtVWNexqDqSZLaTSfk4oriCT1S5UtWb1GWMtdg9scQTUnKjBKZfgao7

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