So when the bolt had snapped, the rod that came up from the bottom was able to drop down enough that one of the step bushings came out of place. They tend to do that if the fine spring that goes up to the body from the rear of the engagement rod is hooked up. You should be able to wiggle things back into place and reinstall the bolt. I suppose that it is possible that the lever return spring on the arm went awol at the same time.