It seems the EdModes can override the widget transform matrix with those methods. Its a matter of deciding what should happen on multiselection of instances.
virtual bool GetCustomDrawingCoordinateSystem(FMatrix& InMatrix, void* InData) override;
virtual bool GetCustomInputCoordinateSystem(FMatrix& InMatrix, void* InData) override;
Toggle between Local and Global Coord System while in FoliageEdMode and this change isn't taken to account.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-77306 in the post.