Classic view black bar issue

[Bright1G]

Hello so im using Default layout and selected classic view so it would remove those borders from the left and right but i noticed it got a bug which is when you select classic view and then exist the client and turn it back classic view becomes glitched, black bars appears from the left and right and they start stuttering when you walk, so to fix this issue you have to reselect classic view and then it goes back to normal again.