are you absolutely sure that isn't just the animation
if it was any other girl i might say "okay that sounds like a real problem" but i know for a fact the kobold has a tailjob as one of her animations
i saw an extreme close up happen with most of the girls and wasn't sure if it was a bug..
but i think it's an intentional close up to replicate smothering.
can't remember if it only happened with Snow's "summon" H-attack.
but you're not alone, i'm not sure if it's intentional or not.