Apple CarPlay screen is blank on iPhone 18 Pro Max with wireless connection

Hi, I have an iPhone 18 Pro Max. For the last two weeks, the Apple Car Play screen is blank when I connect my phone wirelessly. I can still receive calls via Car Play, but the screen remains blank. I have reset Bluetooth settings but this does not resolve the problem. The same thing happens when I use my phone in my wife’s car. Any suggestions for a resolution would be greatly appreciated.