The FK and IK are additive to each other in the spline. The top IK control follows the top FK control by default. Rapid Rig is set up such that any controls that affect the pose of the character are visible. If you do not want to see those controls, you can put them on a custom layer and hide the layer.
The FK controls should hide when fully in IK mode with the exception of the shoulder/hip control, because that control can be translated in IK mode to adjust the shoulder/hip joint's position.
The FK and IK are additive to each other in the spline. The top IK control follows the top FK control by default. Rapid Rig is set up such that any controls that affect the pose of the character are visible. If you do not want to see those controls, you can put them on a custom layer and hide the layer.
The FK controls should hide when fully in IK mode with the exception of the shoulder/hip control, because that control can be translated in IK mode to adjust the shoulder/hip joint's position.