Fibaro dimmer 2 problems

Hello, wondering if anyone can help. I have installed a fibaro dimmer 2 to control my led pendant lights. I am using a three position momentary switch and have wired according to the instructions on Vesternet and also the manual. However for some reason the light only operates with the “down” part of the switch. (Like a single momentary). I have set attribute 20 to value 2 (for blind switch).
Also the dimmer is not responding to brightness changes in the app. I have tried another dimmer 2 that I have but have the same result. Pretty sure I don’t need a bypass as the there is no flickering and the lights work ok on the switch, just not when pushing the “up” or off.