After a few minutes of playing the game, or maybe after pressing a certain button (haven't been able to pinpoint which one if it's the case), the ambient heat and mouse position displays disappears, but still displays the material you're mousing over and the pressure. I've had this problem for a while now and never found out why it was happening. Also, the ambient heat and heat simulation options are on.
Ah yeah that's it, must happen sometimes when I'm using the stickmen. Thanks for the help.