Solved I did something to the curve animated mask. I do not know why holdout does not like that curve but thats all it was. I changed direction of normals. rotated it. It looks the same as other curves it just did not like that curve.
The background is in world environment.
I can see the tracking ball (It is a cheap ball I did not mess up a good one but you can see that) that is part of the background video, is showing through.
here are the nodes That Blender generated. I deleted most of them and it is working now. All but for the hand mask holdout.
everything I try in cycles I run into road blocks I cant get around. 3D view is perfect. but I can get it to render. Every work around I try no luck. something so simple as a mask. BI may have hacked up code whatever that means but it worked and cycles still is much more limited. It looks good but.
