Ambient Lighting not working

[Harrythedog]

Good evening chaps,
As per the title. I've gone through the appropriate menus, the selection is on and the setting is level 5 but it ain't working. Is there an override switch in the cabin.
I've checked the manual and can't seem to find one

Thanks

 

[st13phil]

No override that I'm aware of. Sounds like it's up the swanee...