I forget what the cause was, but I have fixed the inertial separator handle not animating with the variable for the next update. The water rudder handle should work as-is, however. I made some significant changes to the water rudder behavior in v1.2, so please be sure you have the latest version. Do you have hardware bound to the water rudder perhaps? If none of that works, feel free to send me some more information or screenshots, and we can investigate further.