Xbox one X - Dayz 1.18.154955.
When aiming with 4X (Atog) / 6X / hunting scope / PU scope, at many times the scope simply turn white or orange, especially inside cities / places with a lot of loot / very large bases, in general in places that are more graphically heavy.
after a few seconds (sometimes 5 seconds, sometimes 40 seconds) the crosshair is rendered and after that the problem stops happening for some time, until it happens again.