Using NO FILL and with stroke to inside or center, the shape displays only 1 side...bottom line. With stroke set to outside, the rectangle shows 3 sides - left, top & right. If I FILL, I do get a full rectangle, but I need an empty rectangle. Never had this problem before. Just applied Adobe Cloud update this morning (Fireworks already up-to-date). Have restarted and deleted cache. Same problem.
I am having same problem. Did you resolve it?