Me and my friend were playing when he told me that he couldn't aim due to his body shaking.
I did measure his temperature quite a lot of times, giving always 35º, even with dry clothes, healthy, and next to a fireplace.
At the same time, I was checking my temperature at the same time, and mine was incresing while being next to the fire.
I kept doing that for ten or twenty minutes, and then I received an error message instead of his temperature. After that, I couldn't check his temperature anymore. The animation continued, but never ended, and I had to cancel the action every time.
He even tried using 4 heatpacks at the same time, but didn't work.
The only thing ruined on his gear was the UK Assault Vest, then everything was pristine.