Transaction not yet indexed

hkkHWX18CW4Mb3eaHJNayaLcbKKRJp5nxXkBM6y82fJCBMPWuBACKEYiDFNqLkM71ZiXFtBT6yEiwD3FMunQm51

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