The dish fits fine...no issues whatsoever. However, the light with the beauty dish on the light stand stud causes a rotation on the axis when angled. epatt mentioned a solution to me earlier, to make a place for the screw on the stud, so, I believe that will cure the issue.
If you look at cmizzle's pictures, above, you will see it's up high facing foward. Once I turn the actual dish and the light, left or right, the stud and screw aren't tight enough together, by maybe a couple of mm's, and so it causes the light to 'turn' back to the position you see pictured above. I hope that makes sense?