I am making a retractable roof assembly and am having trouble. Each section of the roof is comprised of one part and I am matting two together, so they can fold up on one side of the building like an acordain. I have mated each with the advanced angle range of 5-180 degrees from each other, which makes the two section fold downward like a "v-shape." I then made a distance constraint mate so that the center of two folded sections don't flip upwards. However, as I was try to fold the parts, SolidWorks keeps adding an angle limit mate or changing the current one. Has anyone had this issue before? I would be happy to explain more about this in more detail. Thanks in advance for any input!