I use category back up too and I havn’t had any problems. I do have version 2.4.6 of SmartWare on my PC’s. Below is an image of how my tax files look on my PC as compared to my My Cloud. You can see they are the same, nothing missing. Use this link for a better view of this image. http://community.wd.com/t5/media/gallerypage/user-id/260837/image-id/17617i6D1212531942A384