Sims getting ‘sudden chill’ and freezing to death during heatwave

Its hot as plum, my sim just came home from work and then had a sudden chill from swimming, even though he hadnt been near the water at all. I ignored it and he turned blue and froze to death. Anyone else having this? I hope we get an ‘emergency’ patch as theres so many bugs popping up that are making the game unplayable. I can deal with the starving/stuck toddlers but sims freezing to death in summer is where i’m drawing the line lol