When importing the Semantic or Tracer visuals into Power BI, a warning from Microsoft may appear. It typically reads “Caution: Import custom visual. Custom visuals aren’t provided by Microsoft and could contain privacy risks. Only import a custom visual if you trust its author and source.”
It is our understanding that Power BI displays this warning for all custom visuals.
As a user, you can decide to Import the visual or Cancel. You can also check a box that says “Don’t show this dialog again” to prevent Power BI from showing this warning again.