In a constant attempt to make my gear lighter and more out of the way I got a set of LightPix Labs FlashQ triggers. They are small, light and super easy to use. No TTL. No options. Just on or off. They make great unobtrusive add-ons to my Fuji mirrorless cameras.
Right out of the box they work perfectly on my x100s. Then I tried them on my XPro-1. FAIL.
It seems my black XPro-1, along with many other mirrorless cameras, has a painted hotshoe so there isn’t the needed ground contact. Check out this video to see how I fixed it.