We first discovered this issue in our own product, but we were able to reproduce it even when using Apple’s official demo: https://developer.apple.com/documentation/alarmkit/scheduling-an-alarm-with-alarmkit Reproduction Steps: Set an alarm on iOS 26.1 using AlarmKit. Upgrade the device to iOS 26.2 beta 3 or later. The alarm will no longer ring. Based on our testing, versions prior to 26.2 beta 2 do not exhibit this issue, so it appears that something introduced in beta 3 has caused the regression. The results are as follows: iOS 26.1 → iOS 26.2 beta 2 or earlier: Alarms ring normally iOS 26.1 / iOS 26.2 beta 2 → iOS 26.2 beta 3 / iOS 26.2 RC: Alarms fail to ring iOS 26.2 beta 3 → iOS 26.2 RC: Alarms ring normally This issue is critical. Users currently on iOS 26.1 may experience alarms failing to ring after updating their system, which can cause real-life disruptions (e.g., being late for work). We strongly recommend addressing this as soon as possible. Xcode Version: Version 26.1.1 (17B100) Feedback ID: FB21273655