Wakeup from STOP2 sleep using RTC Alarm

I'm trying to wake my STM32L471 up from STOP2 sleep mode using the RTC Alarm. I successfully get it to sleep, and then I'm using the code from the STMCube Example projects (\STM32Cube_FW_L0_V1.11.0) to try to wake it, but not succeeding. Is anyone able to help? Alarm code is below:

RTC_HandleTypeDef RtcHandle;
RTC_DateTypeDef sdatestructure_set = {0};
 RTC_TimeTypeDef stimestructure = {0};
 RTC_AlarmTypeDef salarmstructure = {{0}, 0};
 
 /*##-1- Configure the Date #################################################*/
 /* Set Date: October 31th 2014 */
 sdatestructure_set.Year = 14;
 sdatestructure_set.Month = RTC_MONTH_OCTOBER;
 sdatestructure_set.Date = 31;
 //sdatestructure_set.WeekDay = RTC_WEEKDAY_SUNDAY;
 
 if(HAL_RTC_SetDate(&RtcHandle,&sdatestructure_set,RTC_FORMAT_BCD) != HAL_OK)
 {
 /* Initialization Error */
 Error_Handler();
 }
 
 /*##-2- Configure the Time #################################################*/
 /* Set Time: 23:59:55 */
 stimestructure.Hours = 23;
 stimestructure.Minutes = 59;
 stimestructure.Seconds = 55;
 stimestructure.TimeFormat = RTC_HOURFORMAT12_AM;
 stimestructure.DayLightSaving = RTC_DAYLIGHTSAVING_NONE ;
 stimestructure.StoreOperation = RTC_STOREOPERATION_RESET;
 if(HAL_RTC_SetTime(&RtcHandle,&stimestructure,RTC_FORMAT_BCD) != HAL_OK)
 {
 /* Initialization Error */
 Error_Handler();
 }
 
 /*##-3- Configure the RTC Alarm peripheral #################################*/
 /* Set Alarm to 00:00:10
 RTC Alarm Generation: Alarm on Hours, Minutes and Seconds */
 salarmstructure.Alarm = RTC_ALARM_A;
 salarmstructure.AlarmDateWeekDay = RTC_WEEKDAY_MONDAY;
 salarmstructure.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
 salarmstructure.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY;
 salarmstructure.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
 salarmstructure.AlarmTime.TimeFormat = RTC_HOURFORMAT12_AM;
 salarmstructure.AlarmTime.Hours = 00;
 salarmstructure.AlarmTime.Minutes = 00;
 salarmstructure.AlarmTime.Seconds = 30;
 
 if(HAL_RTC_SetAlarm_IT(&RtcHandle,&salarmstructure,RTC_FORMAT_BCD) != HAL_OK)
 {
 /* Initialization Error */
 Error_Handler();
 }
 
__HAL_RTC_ALARM_ENABLE_IT(&RtcHandle,RTC_IT_ALRA);
 __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
 
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
	NVIC_SystemRestart();
}