Problems when performing a 'translation' on a model

Hi Guys,

I am experiencing a weird problem when I locate an object in 3D space in DirectX 11.

If I perform a single translation on an object it locates nicely, but when I add another translation to it. the object then becomes distorted.

            DirectX::XMMATRIX translate;
            DirectX::XMMATRIX matObject = DirectX::XMMatrixTranspose(DirectX::XMMatrixIdentity());

            translate = DirectX::XMMatrixTranslation(0, 0.5, 0);
            matObject = DirectX::XMMatrixTranspose(DirectX::XMMatrixMultiply(matObject, translate));

            // translate = DirectX::XMMatrixTranslation(0, -0.5, 0);
            // matObject = DirectX::XMMatrixTranspose(DirectX::XMMatrixMultiply(matObject, translate));

            char objectData[sizeof(DirectX::XMMATRIX)];
            memcpy(objectData, &matObject, sizeof(DirectX::XMMATRIX));
            d3dContext->UpdateSubresource(d3dConstantBufferObject, 0, 0, objectData, 0, 0);
            d3dContext->VSSetConstantBuffers(1, 1, &d3dConstantBufferObject);

With the uncommented area the object looks like this, which is as expected.

But If I uncomment the lines in the middle there, I would expect to have the cube move back to its original position of (0, 0, 0). But instead, I get a distorted cube as shown below.

Leaving the cube at (0, 0, 0) and performing no translations at all renders fine as well, as would be expected.

I'm presently at a loss as to why this is happening.

Any thoughts would be greatly appreciated.