multi_role + FreeRTOS & SOFTDEVICE: INVALID MEMORY ACCESS

Question

I'm using nRF52840 with nRF5_SDK_17.1.0_ddde560, and using the ble_app_multirole_lesc example file. 
 When I port FreeRTOS to the multi_role, there are no errors during compilation, and the counter runs after starting the debug session. 
 However, the RTT viewer shows <error> app: SOFTDEVICE: INVALID MEMORY ACCESS, 
 and the phone cannot connect to it. 
 Below is a portion of my code and files: 
 main.c 
 #include "FreeRTOS.h"
#include "task.h"
#include "timers.h"
#include "queue.h"
#include "portmacro.h"
#include "event_groups.h"

#define COUNTER 1

typedef struct
{
	uint8_t event; // event type
	void *pData; // event data pointer
}mrEvt_t;

int counter = 0;
QueueHandle_t appQueue;
TaskHandle_t AppTask_handle;
TimerHandle_t xTimer_COUNTER;

void vAppTask(void *pvParameter);

static BaseType_t multirole_enqueueMsg(uint8_t event, uint8_t state, uint8_t *pData)
{
	BaseType_t success;
	mrEvt_t *pMsg = pvPortMalloc(sizeof(mrEvt_t));

	if (pMsg)
	{
 pMsg->event = event;
 pMsg->pData = pData;

 success = xQueueSend(appQueue, &pMsg, portMAX_DELAY);
 return (success == pdPASS) ? pdPASS : pdFAIL;
	}
	return pdFAIL;
}

void vTimerCallback_COUNTER(void *pvParameters)
{
	multirole_enqueueMsg(COUNTER, 0, NULL);
}

void initTimer(void)
{
	xTimer_COUNTER = xTimerCreate("BLE_COUNTER", 100, pdTRUE, NULL, vTimerCallback_COUNTER);
}

void initQueue(void)
{
	appQueue = xQueueCreate(10, sizeof(mrEvt_t*));
}

void multirole_processAppMsg(void)
{
	mrEvt_t *pMsg;
	bool safeToDealloc = true;

	BaseType_t queue_receive = xQueueReceive(appQueue, &pMsg, portMAX_DELAY);
	if(queue_receive == pdPASS)
	{
 switch(pMsg->event)
 {
 case COUNTER:
 counter++;
 break;
 }
 
 if ((safeToDealloc == true) && (pMsg->pData != NULL))
 {
 vPortFree(pMsg->pData);
 safeToDealloc = false;
 }
	}
}

int main(void)
{
	bool erase_bonds;

	// Initialize.

	initTimer();
	initQueue();

	// Start execution.
	NRF_LOG_INFO("LE Secure Connections example started.");

	if (erase_bonds == true)
	{
 delete_bonds();
 // Scanning and advertising is started by PM_EVT_PEERS_DELETE_SUCEEDED.
	}
	else
	{
 adv_scan_start();
	}
 
	xTaskCreate(vAppTask, "AppTask", configMINIMAL_STACK_SIZE /*60*/, NULL, tskIDLE_PRIORITY + 1 /*0+1*/, &AppTask_handle);

	vTaskStartScheduler();

	// Enter main loop.
	for (;;)
	{
 idle_state_handle();
 
 APP_ERROR_HANDLER(NRF_ERROR_FORBIDDEN);
	}
}

void vAppTask(void *pvParameters)
{
	xTimerStart(xTimer_COUNTER, 0);
	
	for (;;)
	{	
 multirole_processAppMsg();
	}
} 
 
 sdk_config.h 
 #define NRFX_CLOCK_ENABLED 1
#define NRFX_CLOCK_CONFIG_LF_SRC 1
#define NRFX_CLOCK_CONFIG_IRQ_PRIORITY 6
#define NRFX_CLOCK_CONFIG_LOG_ENABLED 0
#define NRFX_CLOCK_CONFIG_LOG_LEVEL 3
#define NRFX_CLOCK_CONFIG_INFO_COLOR 0
#define NRFX_CLOCK_CONFIG_DEBUG_COLOR 0
#define NRF_CLOCK_ENABLED 1
#define CLOCK_CONFIG_LF_SRC 1
#define CLOCK_CONFIG_LF_CAL_ENABLED 0
#define CLOCK_CONFIG_IRQ_PRIORITY 6