uVision - Config Wizard - Item not found!

I have the following header file for use in a project that uses the config wizard, however on trying to select "Rate Mode" in the drop down on the config wizard page, I get an "Item not found" error and uvision crashes. Does anyone know the cause, or a solution? I can edit the value manually in the code to the desired values, but this defeats the point of using the config wizard!

/**
* @file Gold_Amplifier_Config_0.h
* @brief Provides config options for Gold_Amplifier.c
* @date 04/05/17
*/

// <<< Use Configuration Wizard in Context Menu >>>

// Define to prevent recursive inclusion
#ifndef __GOLD_AMPLIFIER_CONFIG_0_H
#define __GOLD_AMPLIFIER_CONFIG_0_H

/*
 ===============================================================================
                                  Includes
 ===============================================================================
*/

// Standard definitions file

// Middleware Includes

// Non-module Specific Includes

// Module Specific Includes
#include "CAN_Open_Master.h"

/*
 ===============================================================================
                              Public Defines
 ===============================================================================
*/

#define RTE_CAN_OPEN_0

// <h> CAN Settings
// <o> CAN Open Instance <0=> 0 <1=> 1
#define SELECT 0
#if (SELECT == 0)
        #ifdef RTE_CAN_OPEN_0
                #define GOLD_AMP_CAN_OPEN_INSTANCE_0 CAN_OPEN_0
        #else
                #error "CAN Open instance 0 not configured"
        #endif
#elif (SELECT ==1)
        #ifdef RTE_CAN_OPEN_1
                #define GOLD_AMP_CAN_OPEN_INSTANCE_0 CAN_OPEN_1
        #else
                #error "CAN Open instance 1 not configured"
        #endif
#endif
#undef SELECT

// <o> CAN Node ID <0x00-0x7F>
//  Ensure all CAN IDs are unique on the bus!
//  Range is (0x00 - 0x7F)
#define GOLD_AMP_NODE_ID_0 0x01
// </h>

// <h> Feedback Settings
// <o> Feedback Location <0=> Motor <1=> Output
#define GOLD_AMP_FEEDBACK_LOCATION_0 0

// <o> Gear Ratio Numerator <1-4294967296>
//  The numerator of the gear ratio between the motor and the output
#define GOLD_AMP_GEAR_NUMERATOR_0 1

// <o> Gear Ratio Denominator <1-4294967296>
//  The denominator of the gear ratio between the motor and the output
#define GOLD_AMP_GEAR_DENOMINATOR_0 1

// <o> Feedback Resolution <1-268435456>
#define GOLD_AMP_FEEDBACK_RESOLUTION_0 262144
// </h>

// <h> Drive Settings
// <o> Amplifier Drive Mode <1=> Position Mode      <3=> Rate Mode    <4=> Current Mode
#define GOLD_AMP_DRIVE_MODE_0 1

// <o> Continuous Current Limit
//  In mA
#define GOLD_AMP_CURRENT_LIMIT_0 7000

// <o> Peak Current Limit
//  In mA
#define GOLD_AMP_PEAK_CURRENT_0 10000

// <o> Peak Current Duration
//  In seconds
#define GOLD_AMP_PEAK_DURATION_0 3
// </h>

#endif /* __GOLD_AMPLIFIER_CONFIG_0_H */

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