LightShaper

Thanks for pointing that out, Thorsten. I no longer have the packaging, but I'm assuming I have V1.0 units. I purchased a YN560-TX flash controller and It triggers perfectly on all three of my Fuji bodies.

Thanks Trenton, but none of my bodies have electronic shutters. I've tried both TX and TRX modes on the camera's 603. Interestingly, the test button on the camera 603 will only trigger the second 603 with strobe if it's in TRX mode, i.e., both 603's must be in TRX mode.

What am I doing wrong? X-E1, E2 & Pro1 hot shoe's are not triggering a Yongnuo RF-603C II. A flash mounted on second 603 will fire when the manual (test) button on the camera 603 is pressed, so I conclude the Yongnuo's are working properly, but that the camera 603 isn't receiving a trigger signal from the camera. Cameras set to S mode (single shot) and silent mode is off. Tried in both auto and manual. I've read that X bodies WILL trigger the Yongnuo so I'm puzzled. Thanks for any suggestions.