Hi, The company produces MFI-certified devices. A lot of users are affected. it happens when users are in the background. The crash happens in NSArray; it looks like the array is out of bounds to which EAAccessoryManager tries to access. The only assumption I have is that something is wrong with Threads. Maybe we are blocking a Thread somewhere, or EAAccessory should always work on the Main Thread but we switch streams to another thread. It is hard to believe that Apple could have such a simple bug. If it were Apple's bug, other companies who produce MFI devices could also experience the identical bug, but I don't see anyone raising the identical issue. The issues don't have a relation to iOS versions; it happens for us from iOS 13 till iOS 18. Thanks in advance, Eugene.