Extra dim missing on note 10 plus

[shanumh]

I received one ui 4.1 update in my note 10+. At the starting of the time I found a function called "extra dim" and I used it. But after a some while it disappeared. Now no extra dim. I miss it. It was a cool feature.

[AlenSony소니알렌]

May be there is an problem with display so won't come with that feature