Replying to this thread, just hoping that Roku will pay attention to the fact that more than one person has this issue and get motivated to fix it. I can't believe a tech-support person at Roku actually believed that the problem is your brand new iPhone 14! My problem is exactly the same. I am using a brand new iPhone SE3. The Roku mobile app cannot find my Roku devices—I have to connect each one manually—and private, listening crashes the app every time!