Show widget on selected not working

I’ve added a widget to the side panel to show on this page https://www.junglegreenmrc.co.uk/panel/ however it is showing everyone not just on this page.

But others already on this page are displaying properly. I duplicated one of these yet it’s not displaying as it should, any ideas please?

The page I need help with: [log in to see the link]