Both my 15 pro max n macbook air are on latest betas, and screen mirroring gets connected to my phone but I can't see my apps or anything. It's a blank blurr screen. Even though I can see the notifications, but no mirroring of apps or any other feature
Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. I'd greatly appreciate it if you could open a bug report, include an Xcode project that demonstrates the problem and some directions for reproducing the problem, and post the FB number here once you do.
Bug Reporting: How and Why? has tips on creating your bug report.