VR Preview causes the editor to freeze on Mac

When trying to use the VR preview with the oculus rift for a Mac the editor freezes up and has to be shut down.

1. Open the editor on a Mac
2. Make sure that an oculus rift is plugged in and set up
3. Click VR Preview
4. Notice the Editor freezes up

Fix UE-51650

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

Delay nodes occasionally don't fire the "Completed" output in a nativized build

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I've been trying to follow demo for Unreal 4 where you create office but my unreal blanks out and crashes every time I try after I'm a few videos in everytime. It gives me a large error list everytime

I've been trying to follow the demo for Unreal 4 where you create the office but my unreal blanks out and crashes every time I try after I'm a few videos in everytime. It gives me a large error list everytime

Installer 4.10 failed with error code R-1603