I'm having this bizarre issue with my 2021 Model 3, purchased new in January of this year. My AC will have this glitch where only "AC" or "auto" can be turned on at a time. If I try to turn one on while the other is on, it turns off the other. During this debacle, the AC is not blowing cool air. Air is coming out but not cool air. For the AC to start working again, I have to exit the car and re-enter the vehicle. Anyone else have this issue or have a resolution for this? I tried the hard reset with no luck.