Mapping a vector to a structuredbuffer gives incorrect values in computeshader

I have a structuredbuffer in a computeshader which is supposed to hold information about several lights, pos, direction, colour, etc. I have managed to get the info into the computeshader, but the values are incorrect. A float4(1.0, 0.0, 0.0, 1.0); should give me the colour red, but for some reason, I get purple when writing to the backbuffer.

Where I bind the information and send it to the computeshader

if (FAILED(immediateContext->Map(lightBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mpdResource)))
    {
        return false;
    }

    std::vector<LightBufferType> lightsBuf(2);

    DirectX::XMMATRIX matrix;

    for (int i = 0; i < 2; i++) 
    {
        lightsBuf[i].lightPos = lights[i].GetPos();
        lightsBuf[i].lightDir = lights[i].GetDir();

        lights[i].GetViewMatrix(matrix);
        lightsBuf[i].lightViewMatrix = DirectX::XMMatrixTranspose(matrix);
        lights[i].GetProjMatrix(matrix);
        lightsBuf[i].lightProjMatrix = DirectX::XMMatrixTranspose(matrix);

        lightsBuf[i].lightColor = lights[i].GetDiffCol();

        lightsBuf[i].angle = 30.0f;
        lightsBuf[i].type = lights[i].GetType();

    }

    memcpy(mpdResource.pData, lightsBuf.data(), sizeof(LightBufferType) * 2);

    immediateContext->Unmap(lightBuffer, 0);

    immediateContext->CSSetShaderResources(6, 1, &structuredSRV);

My hypothesis is that my problem is that I use the incorrect size in memcpy

Sent structured buffer to computeshader, but it has incorrect values

Found the problem, it seemed like transposing the matrixes made them larger, and therefore they kinda "leaked" over to the lightcolor. I found that storing the matrixes in Float4X4 stopped this from happening.

        lights[i]->GetViewMatrix(matrix1);
        lights[i]->GetProjMatrix(matrix2);
        
        matrix1 = DirectX::XMMatrixTranspose(matrix1);
        matrix2 = DirectX::XMMatrixTranspose(matrix2);

        DirectX::XMStoreFloat4x4(&viewFloat, matrix1);
        DirectX::XMStoreFloat4x4(&projFloat, matrix2);

        lightTest.lightProj = projFloat;
        lightTest.lightView = viewFloat;