There is no drop-down list at all

There is no drop-down list at all

Here are the images

The option is disabled (What I expect)
image

The option is enabled
image

All suggestions or just specific ones like search suggestions or bookmarks suggestions, etc?
Here it seems to work.
BTW, what's your OS and graphic card?

I never noticed bookmarks suggestions but I think all suggestions are gone. After enable the option and I type something inside the address bar, nothing shows up below it but autocomplete works fine ex. I type 'yo' it completes my sentence to 'youtube.com'

OS: Windows10 x64 (KB4016240)
Graphic Card: Intel(R) HD Graphics 5500(on-board) and AMD Radeon R7 M265 Series

Ps. It is a laptop not PC

Hello,

When I enable 'Override software rendering list' option in 'opera://flags' the google and history suggestion dropdown in the address bar seems disappeared when you type something. Does anyone know how to fix this?