Does not work here either. iPhone pro max 12 and watch se. The car is 2020 Mercedes with wireless carplay.
Quite interesting that a bug this big does not get solved.. CarPlay is great to have, but one of the most important features for me is that I receive the calls also to my watch. Now I am not able to use CarPlay, which was quite important when getting a new car. Expensive new gear which does not work.
Also, when I contacted support, they were totally unaware of this..