Well thanks for the info guys, I thought my client was busted or something because I saw red and then spent like 10 heat packs and an hour next to a fire in a house and no change.
I must have missed that in patch notes, last I read it was like all the others being green when good and turning red when bad and blinking when critical. So, it's just a "am I sick?" indicator now?
Basically I currently play without knowing if my temperature ingame is ok or not. The indicator is always red and never changes. I've tried a full reinstall already but to no avail and have run out of ideas.