Intermittent error when launching the app using (Version 4)

[developer9969]

Description:
Intermittently we see this error "

"Java.Lang.RuntimeException: "Unable to instantiate receiver com.onesignal.GcmBroadcastReceiver:java.lang.ClassNotFoundException:Didn't find class "com.onesignal.GcmBroadcastReceiver" on path:DexPathList

(your description here)

Environment

1. Project with OneSignalSDK.Xamarin 4.0.0
2. Xamarin Forms 5.0.02337

Steps to Reproduce Issue:

1. Launch the app and intermittently you will see this error.

Also we see another error intermittently when calling await OneSignal.Default.SetExternalUserId(externalUserId);
As soon as we get it again I will update the ticket.