[Solved] Shader working in OpenGL but not in WinDX

Uuurrrghhh - figured it out. Related to this issue http://community.monogame.net/t/order-of-tex2d-in-shader/8720/26

So simply moving float4 tex = tex2D(InputSampler, input.TexureCoordinateA); to be the first line in the shader fixed it.

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