Yesterday I wrote about possible solution for issue related using Windows Enhanced Metafiles, an issue originally identified in post Visio by DPTPB: Reducing size of complex Visio shapes V2.
In my original post I also identified another possible issue with ungrouping an image. This issue is related to the fact that Visio cannot render fonts that are smaller than 1 pt in size. With some images there is some text, like “UID” or “USB”, to label some elements of the image. And once you ungroup that image, the text size suddenly increases.