Transaction not yet indexed

YLm5nsCckNebTLA3xdfkXJhKevBdP6srcxyWp7NP7Tbqedx6aZQ8jd4xPELrFrzuePwdiAqKbHvCffhqHBFApT1

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