After some time of playing, TAN stats (temperature and thirst) started to persist and now they remain unchanged, i.e. temperature and thirst are being unaffected by anything, they just stay the same. No errors in logs, /tan tempinfo shows that the rate is ticking and the target temp is correct but it still remains unaffected.
I also used /tan settemp before, could this glitch be caused by that command?

Overall this mod is a buggy mess.