Transaction not yet indexed

56n5CD4pHuLqi8hJv7nCkU4dVB6Ajkh4qZ3V1uCX2JsrfyyVgJv1aXfjaQXGS1QWM16Bx5uNnYNv4f9oKJmucLq5

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