If you try to move your rig, notably the Squirrel and Monster Ball rigs, you may find that the root control will move, but the rig will not. This problem is caused by Maya's Evaluation mode. You can solve the problem by following these steps:
- Go to Windows - Settings/Preferences - Preferences
- Go to the Animation category under Settings (Not the Animation category under Display)
- Set the Evaluation mode to DG instead of Parallel.
- Hit Save
- Restart Maya
With the evaluation mode set to DG, you should be able to use the rig without the control ring breaking.