I have noticed that Power BI does not seem to be WYSIWYG (What You See is What You Get) because although my cartesian coordinates state that all of my slicers should be perfectly matched up, visually they do not all look evenly sized and distributed. My report users are very picky on formatting, but here is what I mean. All of these slicers have the same dimensions and are positioned parallel and symmetrically. But they do not all look 100% in parallel or symmetric: