[Appointments] order parameter of the app_services shortcode causing issues

I have changed my [app_services] shortcode today. Before it was:
[app_services autorefresh="1"]
and it was working properly. But I’ve changed it to:
[app_services autorefresh="1" order_by="ID DESC"]
so the order of the services has been changed and now another service selected by default. But when I chose date and time, without changing service selected by default, in the confirmation form it shows the wrong service, not the one that was selected by default.