Jittering/Teleporting While Turning with FPS Controller

In my current game, I am using the Unity FPS Controller package in my game as my characters in my game. Whenever I instantiate the prefab of the FPS Controller, it moves around just fine but as I turn to look around, the FPS Controller jitters and randomly teleports in the space around it. This happens whether I have my attached GameObject enabled or not. How do I prevent it from doing this?

Also, my model for my character is under the hierarchy for the FPS Controller. Is there a better way to do this that just consolidates the FPS Controller and actual model into one prefab?