I am wondering if there is anything I am doing wrong, or if my unit is broken, because I can't seem to mount it in a DIN rail. See photos below, there is nothing that would clamp up to the rail, if I push up _really_ hard on the disengaging mechanism, I can see the clamps appear, but as soon as I release, then they go back. It is like the latches are locked in the open position and do not go back to the idle position. Is there any trick to make them go to idle again?
