Since iOS 26.1 the AlarmKit alerts don't work anymore on simulator when the screen is locked. This is also still broken on the current Xcode 26.2 beta. They do trigger on the home screen and in-app though. Also on device everything works fine. Is there any secret trick to make it work again?
AlarmKit alerts not working in simulator
Thank you for your post. You are correct; it appears that the new beta simulator version does not function properly with AlarmKit. Consequently, we consistently request that users utilize a physical device to test the functionality. However, I recommend that you file a bug report for Xcode 26.2 beta simulator if you are not opposed to doing so.
Once you open the bug report, please post the FB number here for my reference.
If you have any questions about filing a bug report, take a look at Bug Reporting: How and Why?
Albert Pascual Worldwide Developer Relations.