When aiming through the Hunting Scope, lights carried by players either don't render properly, or at all.
Was playing at night, spotted two players using head lamps/flashlights in the northern part of the map (outside Novaya). Tried sniping with a Tundra equipped with a Hunting Scope, but upon aiming down scope the lights would either disappear entirely, or be so dim they were barely visible. Upon scoping out you could see them bright as day. Tried multiple times.
Unsure if this applies to other light sources or scopes/optics.