@fito I have decided to test your report:
You are correct:
Turanian (which was heat resistance) now makes you hotter in a hot area and you keep the same temperature in the cold.
Argossean/Arena (which were neutral) now warm you up in cold areas and you keep the same temperature in the hot areas.
Black Ice (which was cold resistance) - now warms you up in cold areas and you keep the same temperature in the hot areas.
I can’t check the other DLCs (due to the bug) but it seems that Turanian got the wrong temperature setting while the rest seem ok?
PSA: It seems that the heat resistance building sets now make you even warmer. This is very likely not intended. I doubt that the devs will have time to fix this by tomorrow.