I have been shooting my FL-600r flash off camera with a Canon Off-Camera Cord Shoe 2 with my EM-1 and EM-5 for about two years. All of a sudden it no longer fires off camera with either of my two cords today. Every thing else functions with my camera and flash with that cord but it just will not fire the flash. When I zoom my lenses my flash zooms as well but no light from the flash. I can use either of my FL-600r flashes and they both functions the same with either of my two cords. I also have a Fuji EX-1 and when I use those two cords with that camera it fires perfectly. Any ideas as to what my problem just might be?