Description

This issue has been reported by two different users with very similar circumstances:

Both report the editor freezing when trying to compile UE4.10 C++ Projects running Mac OSX 10.11.1 if no audio input is present. (USB Headphones for example)

The first user reports this issue is present for Mac, but not on the same machine when running Windows via Bootcamp.

The Answerhub Posts:

https://answers.unrealengine.com/questions/335974/410-freezing-when-i-click-play-or-compile.html

https://answers.unrealengine.com/questions/347776/mac-unreal-editor-freezes-if-no-audio-device-plugg.html

Steps to Reproduce

1. On a Macbook Pro running 10.11.1, with no audio input devices
2. Opened the C++ Advanced Vehicle Project
3. Compiled through editor -no crash
4. Compiled through XCode -no crash

*Unable to reproduce in house, but at least two users experienced this recently.

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Cannot Reproduce
ComponentUE - Platform - Apple
Affects Versions4.10
Target Fix4.12
CreatedDec 22, 2015
ResolvedApr 19, 2016
UpdatedApr 27, 2018
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