Hello. No I gave up. Not sure if Apple Media Services is actually supported or has just been forgotten

Unfortunately, same issue. I can't even wear my Apple Watch anymore. Had to turn it off and put it away to get any work done.

I updated an iPad Pro to iOS15 beta to run the Canvas test on device and its the same thing, barely getting 1 frame a second

If anyone else reads this, an answer was posted in another thread. Need to turn off Network Access in Devices and Simulators panel

Hopefully it will stick because I have wasted a tremendous amount of time around this issue, Carrione solution above about turning off connection to devices via network for me so far. After clearing my phone from the devices window I was able to connect and run my app on it again

Same issue. MacOS 11.2, and Xcode 12.4, on a MacBook Air M1. It has made Xcode unusable, can't click on anything or edit text. If it does work it works for a few seconds and then locks up again. I've tried deleting the Xcode cache, and deleting Xcode and then redownloading it from the App Store