App Hangs on Mac at `inputNode = audioEngine.inputNode`

[saamerm]

If you look at the image below, my App Hangs on this line

WhisperKit/Sources/WhisperKit/Core/Audio/AudioProcessor.swift

Line 976 in 2870b46

let inputNode = audioEngine.inputNode

from the AudioProcessor.swift. It has happened 6 times on a macOS 26.2.0 Mac14,6 arm64 this week while running the smallest English whisper model.

My class for the transcription is identical to yours, especially the one to start live transcription using this function:
https://github.com/argmaxinc/WhisperKit/blob/2870b46b92ebd522c094e4c2da77ba3c415138d8/Examples/WhisperAX/WhisperAX/Views/ContentView.swift#L1256C1-L1257C1

I'm not sure why it is hanging but I feel like there should be a better way to prevent it from hangs or at least an error message

Is there any other piece that can help debug that I can share?

[saamerm]

Perhaps we could use mxSignPost as shown at 39:00 here: https://developer.apple.com/videos/play/wwdc2019/417/