Dimmer switch doesn't go to full brightness with long press turn on
I just installed the dimmer switch in my bedroom. It appears to be working properly however in the tutorial it states that if you hold the switch for two seconds when powering on the light it will turn it on at Max brightness as opposed to the brightness setting the light was on when turned off. I can't seem to get this to work as anybody else had this problem? Is there anything I can do to fix it?