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OpenGL OpenGL 4.1 OSX drawing issue

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Hello GameDev,
Having a issue with OpenGL drawing on OSX (10.9 xcode 5) Core 4.1 profile. Calls to glDrawElements are returning gl_invalid_operation, I believe I have everything configured in the OpenGL state correctly.
This is the first frame of my OpenGL callback up to the place where glDrawElements is called and corruptes the state (glError returns gl_invalid_operation).
My VAOs:
Both shaders (Vertex/Fragment) compile and attach to the program (Program has validated status of GL_FALSE however).
The glDrawElements call looks like:
      glDrawElements(mesh->getPrimitiveType(), nbIndexes, GL_UNSIGNED_INT, 0);
    Resolved it looks like
       glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_INT, 0);
Any input is appreciated.

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(Program has validated status of GL_FALSE however)

Print out the shader and program info logs, and see if they offer any clues. If your program didn't validate, you probably have a linker issue.

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