ARCore 1.2 with ARKit for iOS crashes Editor

With ARCore 1.2, you can now build for iOS with the Unity ARKit plugin.

https://developers.google.com/ar/develop/unity/quickstart-ios

The docs say that Instant Preview is supported in the OSX editor using Metal.

Use Metal in OSX section:
https://developers.google.com/ar/develop/unity/instant-preview

However, the CloudAnchor test scene crashes Unity Editor when played on OSX. I was able to build the test scene and get it working on an iOS device. But, seems like a slow work flow to not be able to test in the Editor. I even tried disabling the instant preview, but that crashed the editor as well, and even made the Unity HUB think the project was still opened after it crashed. I had to full restart. The only way I've been able to test this in the Editor, is to change the build target to Android. This seems like a slow way to build an ARCore project for iOS.

Unity 2018.1.0f2
OSX 10.13.3

 

I suppose the ARCore have crash issue with Unity, I experience this as well
https://github.com/google-ar/arcore-unity-sdk/issues/260

May be better to use ARKit developed by Unity host on bitbucket? Anyone got suggestion?

 

We have a bug in the current release where play-in-editor only works when targeting Android (also Instant Preview in that case will work with Cloud Anchors, and other ARCore apis, if connected to an ARCore-supported Android device). We have a fix internally for this play-in-editor issue and it will be available in an upcoming release.