[Plugin: WP-dTree 3.5] Menu disappearing off homepage

Hi,

if I tick ‘Open to selection’ the menu no longer shows on the homepage.

Homepage is https://www.wyndhamhousedental.co.uk/cms/

All other pages display the menu:

eg. https://www.wyndhamhousedental.co.uk/cms/about-us/

Any advice?

Thanks,

Byron