I installed Xcode 15 beta 3 (Xcode_15_beta_3) and the iOS 17 runtime (iOS_17_beta_3_Simulator_Runtime). I am able to build and run in the Simulator (iOS 17) and on my physical iPhone 14 Pro running iOS 16.5.1 (20F75). But when I connect my physical iPhone 12 Pro running iOS 17.0 (21A5277h) it doesn't show in Xcode Devices and Simulator. What could be the problem? I already tried restarting Xcode, the Mac and the iPhone. Plugging to a different usb-c port.