[Help] Sprite disapear after ~50 sec topic

Hello, i need some help with my sprite is only being shown during like 50sec, (yes i call it in an infinite loop)

here is my code :

Code:

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//ini
D3DXCreateTextureFromFile(dx_Device, "lol.png", &texture);

Function :
void DrawSprite(LPD3DXSPRITE sprite,int x, int y, float scalex,float scaley,LPDIRECT3DTEXTURE9 texture)
{
       
if(sprite==NULL)D3DXCreateSprite(dx_Device,&sprite);
 
        sprite->Begin(D3DXSPRITE_ALPHABLEND);
        D3DXVECTOR3 pos;
        pos.x = x;
        pos.y = y;
        pos.z = 0;
        if( scalex > 0 || scaley > 0)
        {
                D3DXMATRIX mat;
                D3DXVECTOR2 scaling(scalex,scaley);
                D3DXVECTOR2 trans=D3DXVECTOR2(50.0f,80.0f);
                D3DXMatrixTransformation2D(&mat,NULL,0.0,&scaling,NULL,NULL,&trans);
                sprite->SetTransform(&mat);

        }

        sprite->Draw(texture,NULL,NULL,&pos,0xFFFFFFFF);
        sprite->End();

}

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