On this photo, I tried to show the space between the collar of the 3ph lever and the remote lever and the deflection of the remote collar on the axle (obviously, I don't know the real names for these parts, but I think you will know what I am talking about). You have to look closely at the bottom to see this space as there is a hose or something in the way. As the remote lever was coerced into the outside slot, the collar moved toward the end of the axle and is deflected downward on the outside of the axle and upward on the inside.
I attempted to place the lever in the center slot and had the same result you did on your original installation. The remote lever interferes with the 3ph lever, making both of them unusable. Therefore, I moved the remote lever back to the outside slot until I can get the dealer to make the repair. I will let him know that he needs to order a new lever arm as some of these are bent wrong. I guess it is possible that the angles on the 1st remote levers differ slightly from those for the 2nd remote and they may have packages a second remote lever by mistake. Don't know about this but I would like to think that these levers are mass produced in a way where there would not be much variation from one to the next.
Sorry I did not take a picture of the lever interference with the remote in the center slot. Ran out of time. Was getting dark and had to get everything put back together. Again, was wishing the rear wheel was not in the way.
Hope these pictures satisfy your request. Please don't ask me to take it apart again, though. Would have to politely decline.
Bruce