BYD Sealion 7 aircon issue

I got my sealion7 a month ago and the most annoying problem is that the aircon does not seem to work reliably: some days it works just fine and really cold air comes out immediately. But then there are days when it works only 3 out of 10 times I start the car. Super annoying especially on hot summer days.. anyone else has that issue.

I called my car dealer, they will take a look but they are not aware of any know issues.