Iphone 12 flickering in dark mode

Hi everyone!

I have noticed a very weird bug, only when my phone is on “dark mode” and I have installed a light color wallpaper.

When I open app such as only 3 apps on left itunes,support,fitness and right tips,translate,podcast which all have a dark background during the “dark mode”, I get a white line of flickering lasting just 0,2/0,3 seconds on the left side and right side of the screen.

This doesn’t happen in case I have a dark wallpaper or “light mode” on with any kind of wallpaper.

Do you have the same problem? If yes, when will they fix this bug?