Curious if anyone has experienced issues specifically with using the XT1-F trigger firing the AD600? I was using both on my XT=1 with no issues until today when it just stopped working. I can fire the flash if I hit the trigger button but not when I take a picture. I can however fire the flash perfectly fine when using the TT350 as the master on-camera. Also I can still fire my TT350 off camera using the XT1-F. It just won't fire that AD600 at all. Tried it on the X100F as well and nothing. I see others online with other systems have had similar issues. Any help or recommendations are appreciated. Just updated the AD600 with the latest firmware, as well as the XT1-F. I had been using the AD600 with an older firmware with no issues for a handful of shoots before today's complete failure.