After the update to Android DropBox SDK 4.1.0 my application most of the time crashes with:
MapboxEventManager: Error Trying to load Staging Credentials:
java.lang.NullPointerException: Attempt to invoke virtual method
'java.lang.String android.os.Bundle.getString(java.lang.String)' on a
null object reference
This is a known issue, for now you can try clearing the apps cache. Switching the map style url to a different one will potentially fix the issue as well. A bug fix will be out later today for iOS and Android, you can follow the Android release here.
4.1.1 has now been released, you can upgrade in your Grade file. More information can be found here.