Constant buffer receives wrong value

Question

I have got this HLSL struct and when I pass in a Material buffer from C++ to HLSL, some values in my struct is wrong. I know this because I have tried for example setting the emissive color to Vector4(0, 1, 0, 1) or GREEN and in my pixel shader I return only the emissive color and the result becomes BLUE! And when I set the emissive to (1, 0, 0, 1) or RED, the pixel shader outputs GREEN color. So it seems like everything is shifted 8 bytes to the right. What might be the reason behind this?

EDIT: I noticed that my virtual destructor made my structure bigger than usual. I removed that and then it worked!

HLSL struct

struct Material
{
    float4 emissive;
    float4 ambient;
    float4 diffuse;
    float4 specular;
    float specularPower;
    bool useTexture;
    float2 padding;
};

C++ struct

class Material
{
    virtual ~Material(); // - I removed this!
    helium::Vector4 m_emissive;
    helium::Vector4 m_ambient;
    helium::Vector4 m_diffuse;
    helium::Vector4 m_specular;
    float m_specularPower;
    int m_useTexture;
    float m_padding[2];
};