I am currently working at a theatre with these 3 celled cyc lights. I have never been in this space before. I had just sat down to the board to explore when one of the gel frames fell. They dont have a lift, nor a fly system. When I looked up at the lights I noticed that the opening where you slide the gel frame and safety screen in was pointing down. On the top side there was a lip that looked like it should be on the bottom to prevent gels from falling. I am wondering if these instruments were hung upside down. Any thoughts? (We have had two more frames fall and they won't let me up to fix it.