Transaction not yet indexed

MDmk8D655uhHxEqa7yPcbboxWB2Kpt9FoYQVnW9cUX8ciuTH1fN7xc86eVNeja2CNVtB8zwt6rBkMjdJNDyx8Mo

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