Amazon Music Unlimited Does Not Work With CarPlay Since iOS 15 Update

Amazon Music Unlimited worked perfectly fine on iOS 14 and all its updates. But when I upgraded to the current iOS 15, it refuses to connect, with an error of "Unable to Connect To Amazon Music". In addition, if I plug in my iphone to my dash to activate CarPlay, the Amazon Music Screen on the phone goes completely blank. I know I am not the only one with this issue. I have spent a great deal of time with Amazon Music Support, and they assure me it is a CarPlay error. I have done every possible fix listed on the internet, to no avail. Just a waste of time. I really love my Amazon Music, and my many playlists that took a great deal of time and effort to put together. Does Apple have any plans to address this issue? While I can appreciate the security of Apple, which is one reason I chose the iPhone, sometimes I feel like Apple is intentionally making its competitors products not work properly, so you will switch over to their products. I hope this isn't happening, but everything else on CarPlay works, and I haven't made any changes to anything. Any ideas?