Upon switching records, pages, etc... I receive this error (which is bypassable) during debugging:


To which I always hit "Continue" because the domNode is undefined or not initialized. While this is only a minor inconvenience, having to click this 100+ times a day during debugging slows down the development process by a lot!
Does anyone have any insight into this? I don't recall deleting anything native from any smartpart controls and that shouldn't matter since this occurs across multiple pages/entities.
(FYI - running 8.1.0.05 (January 09, 2015))