I got another one (very similar) and it has the same problem. When I hit the timer start/stop button it works, shooting either on what X-T1 wants or the predefined length if the X-T1 is in bulb mode, but when I try the manual shutter (bulb or any other settings) nothing happens. The remote is supposed to be replacement for the Canon rs60 or something like that. Practically is almost usable but I don't get why it's not working entirely, as it seems it's not a problem with the remote per se but a design thing.
Which remote do you have?
I also tested the bracket with the remote in a portrait mode and the fit is almost impossible, mostly due to a large door on the Fuji. I might get the spacer from RRS if it looks I'm going to use it often this way, RRS says it's necessary for their L-plate also.