➜ ~ /Applications/Xcode.app/Contents/Developer/usr/bin/simctl runtime dyld_shared_cache update --all Updating dyld shared cache if needed for runtime: iOS 26.3 (26.3.1 - 23D8133) - com.apple.CoreSimulator.SimRuntime.iOS-26-3. dyld shared cache is usable at path: '/Library/Developer/CoreSimulator/Caches/dyld/25D2128/com.apple.CoreSimulator.SimRuntime.iOS-26-3.23D8133/'. Updating dyld shared cache if needed for runtime: iOS 26.4 (26.4 - 23E244) - com.apple.CoreSimulator.SimRuntime.iOS-26-4. dyld shared cache is usable at path: '/Library/Developer/CoreSimulator/Caches/dyld/25D2128/com.apple.CoreSimulator.SimRuntime.iOS-26-4.23E244/'. But no changes to the startup time. Regarding configuration:

Also reproducible here, without debugging start is a few seconds, with it takes over a minute. FB22365004

Please also see https://developer.apple.com/forums/thread/791814 We worked around it like this private class ContextMenuContainerView: UIView { override func didMoveToWindow() { super.didMoveToWindow() if #available(iOS 26.0, *) { // Make our context menu accessoryView user interactive self.superview?.isUserInteractionEnabled = true } } }

I am seeing the same problem with Sequoia 15.4 and 15.5 Beta 3 (that @peterz is seeing). It worked fine before, without an issue. Also tried to use XCode 16.2, but didn't make a difference. Interestingly enough, it seems to work shortly after rebooting?! But no chance after a few minutes. I opened a DTS about that 13379930

Seems that one way to crash at setting the constant is to have a non-finite value. So for now I added a check for finite values. Let's see if this fixes the crashes I am seeing.

Hey Quinn, looks like this is resolved for me in 13.2 Beta (22D5038i)! So I guess you got to the bottom of this? Thank you!

Hello Quinn, thanks for your help! I filed it as recommended under FB11793487. I also tried to run it with Xcode 14.0 - same problem. Thanks!

I'm seeing the same thing, when I start a new app from a template: 2022-11-14 16:08:34.408009+0100 KeychainTest[23016:1864774] OSStatus error: [-34018] Security error has occurred. 2022-11-14 16:08:34.408167+0100 KeychainTest[23016:1864774] OSStatus error: [-34018] Security error has occurred. No string returned My test code was like:         let keychain = UICKeyChainStore.init(service: "de.NAME.APP", accessGroup: "group.de.NAME.APP")         keychain.setString("ABC", forKey: "MyKey")         let testString = keychain.string(forKey: "MyKey")         if let testString = testString {             print("Returned string: " + testString)         } else {             print("No string returned")         } (using this lib: https://github.com/kishikawakatsumi/UICKeyChainStore) To rule out any problem with the lib, I tried the code found at https://stackoverflow.com/a/42360846:         let test = "ABC"         let data = test.data(using: .utf8)         if let data = data {             KeyChain.save(key: "MyKey", data: data)             let keyChainData = KeyChain.load(key: "MyKey")             if keyChainData != nil {                 print("Data was returned")             } else {                 print("No data returned")             }         } Same error, with this one, so basically the app logs 2022-11-14 16:24:18.381452+0100 KeychainTest[24118:1904070] OSStatus error: [-34018] Security error has occurred. 2022-11-14 16:24:18.381605+0100 KeychainTest[24118:1904070] OSStatus error: [-34018] Security error has occurred. No string returned No data returned Running the same on a real device, it works: Returned string: ABC Data was returned In the console I see the same messages about about entitlement and provisioning profile as in the first message.