使用C++List出现读取访问权限冲突的问题。求解

我创建了一个Animation类型的List用来放所有的Animation对象。animation类的实现如下

 #include "cAnimation.h"

Animation::Animation(int imgNum, TCHAR *fileName, long  frameSpeed, int xPos, int yPos)
{
    TCHAR path[100];

    m_AnimationImg = new CxImage [imgNum];//图片数组存放动画帧
    m_HeadImg = new CxImage();//保存图片数组头指针
    m_HeadImg = m_AnimationImg;

    for (int i=0;i<imgNum;i++)//添加动画帧到图片数组
    {
        swprintf_s(path, L"%s%d.png", fileName, i);
        m_AnimationImg->Load(path, CXIMAGE_FORMAT_PNG);
        m_AnimationImg++;
    }

    m_AnimationImg = m_HeadImg;

    m_frameSpeed = frameSpeed;//图片播放速度

    m_xPos = xPos;//动画显示坐标
    m_yPos = yPos;

    m_ImgNum = imgNum;//图片数量

    QueryPerformanceFrequency(&m_Frequence);//频率
    QueryPerformanceCounter(&m_StartCounter);//起始计数器
}

bool Animation::Draw(HDC m_hdc,UINT xPos,UINT yPos)
{
    static long m_time = 0,lastTime=0;//时间间隔
    QueryPerformanceCounter(&m_CurCounter);//当前计数器
    m_time = (m_CurCounter.QuadPart - m_StartCounter.QuadPart) * 1000 / m_Frequence.QuadPart;


    m_AnimationImg->Draw(m_hdc,xPos,yPos);//绘制当前图片

    //保证循环播放图片
    int static i = 0;
    if (i == m_ImgNum)
    {
        i = 0; m_AnimationImg = m_HeadImg;
    }

    //设置图片播放速度
    if (m_time - lastTime >= m_frameSpeed)
    {
        lastTime = m_time;
        i++;
        m_AnimationImg ++;
    }
    return true;
}
bool Animation::Draw(HDC m_hdc)
{
    static long m_time = 0, lastTime = 0;
    QueryPerformanceCounter(&m_CurCounter);
    m_time = (m_CurCounter.QuadPart - m_StartCounter.QuadPart) * 1000 / m_Frequence.QuadPart;


    m_AnimationImg->Draw(m_hdc, m_xPos, m_yPos);

    int static i = 0;
    if (i == m_ImgNum)
    {
        i = 0; m_AnimationImg = m_HeadImg;
    }

    if (m_time - lastTime >= m_frameSpeed)
    {
        lastTime = m_time;
        i++;
        m_AnimationImg++;
    }

    return true;
}

bool Animation::Clean()
{

    return true;
}

Animation::~Animation()
{
    //delete m_HeadImg;
    //delete [m_ImgNum] m_AnimationImg;

}

Animation::Animation()
{

}
bool Animation::Update(int xPos,int yPos)
{


    m_xPos = xPos;
    m_yPos = yPos;
    return true;
}

list定义如下

 typedef list<Animation> AnimationList;
    AnimationList m_AllAnimation;

之后在push_back()了两个animation；

如果只放一个animation不会出现读取访问权限冲突的问题。放两个animation进去，会是这样：第一个animation开始播放，第二个animation只绘制出了第一张图片，当第一个animation播放完就会出现问题

list的遍历

 bool AnimationMgr::Draw(HDC hdc)
{

    list<Animation>::iterator aniIterator;

    for (aniIterator = m_AllAnimation.begin();aniIterator != m_AllAnimation.end();++aniIterator)
    {
        (*aniIterator).Draw(hdc);
    }
    return true;
}

请问是什么原因呢？