Fan humidity switch doesn't install
This one is simple -- you have the "line" and "load" terminals on the fan controller swapped, assuming the wire that is going to both the fan and the light switches is the line going in.  The red screw (i.e. the screw on the same side as the silver neutral screw) is the load terminal, while there is a brass(?) screw on the opposite side of the device that is the line terminal -- they are also marked RD/WH/BK on the back of the device.  Turn the circuit off at the breaker, and swap the two terminals -- you will need to swap the pigtail from the other switch over to the BK/brass screw on the device as well.