I suspect the problem is AirPods and automatic switching as outlined here.. Back in iOS 12 we worked with Apple on a support ticket and built a simple app to reduce/replicate the problem.. No one here can remember the resolution, so it's either been broken since iOS 12 at least or it's an old problem that's reemerged.
I'm going to test without AirPods over the next 24 hours and see if the issue resolves.
bmedenwald
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One of Apple's documented requirements is a lie. Updated to Xcode 15.1 just now and I cannot get iOS 14.5 simulator to work.
xcrun simctl create iOS14TestDevice "iPhone 12" com.apple.CoreSimulator.SimRuntime.iOS-14-5
An error was encountered processing the command (domain=com.apple.CoreSimulator.SimError, code=401):
The iOS 14.5 simulator runtime is not available.
The iOS 14.5 simulator runtime is not supported on hosts after macOS 13.3.99.
The iOS 14.5 simulator runtime is not supported on macOS 13.5.2.
Why this is a problem is that Xcode 15.1 requires macOS 13.5 or later..
So according to Apple's docs, Xcode 15.1 will only run on macOS 13.5, and iOS 14 simulators will only run before macOS 13.3.99. This two requirements are in conflict. Yet, Apple's Xcode support page (which doesn't list Xcode 15.1 yet at all) lists it's possible at least in the Xcode 15.1beta.
I need iOS 14.5 to run in a simulator for continuous integration. Looks like it's no longer possible if we move to Xcode 15.1.