Error throws when starting playback in the editor and sometimes when viewing VuforiaConfiguration.asset in the inspector:
NullReferenceException: Object reference not set to an instance of an object
Vuforia.EditorClasses.WorkerToMainScheduler.UpdateFromMainThread () (at <863340cee03640148af16e5524363348>:0)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at C:/buildslave/unity/build/Editor/Mono/EditorApplication.cs:200)
No clue what the problem could be but looks like you guys aren't handling an exception very well.
Also getting a frequent info message about how to enable AR Core support. Not sure why it keeps showing, but we're not trying to use AR Core and don't really want to be reminded all the time. We have enough important log messages to look through!