There appears to be a bug where the Interstage fairing adapter locks you to the launch pad. I can swing the rocket like a pendulum on the launch pad and iif I swing too far the rocket will snap in half. When I removed it, the rocket lifted off just fine.
Edit: appears to be a problem with all fairings.
I have installed the latest version of Animated Decouplers from GitHub, The Service Module, Side Panels and Launch Cover don't have any option to decouple them at all. I'm going to check the Drop Box version.