camera.layerCullDistances not working on gameobject with combinechildren

Hi! I have a parent gameobject, its children share a common material, so I thought it would be a good idea to have them under a single gameobject and add the combinechildren.js script to it, at the same time they are on a layer that I want to be rendered only when they are certain distance away, so I have a script in the camera that goes like this :

 function Start () {
 
     var distances = new float[32];
 
     distances[8] = 100;
     distances[9] = 200;
     
     camera.layerCullDistances = distances;
 
 }

I have the parent gameobject on layer number 8, so I expected each individual children to be visible only when the camera is within 100 units, but even the children that are really far away are visible.

When I remove the combinechilren script, it works fine and the children are visible only till a distance.

Do combinechildren and camera.layerCullDistances don't function together, if not, which one should I go for, in order to get better performance? I have already created some texture atlases so that I could combine the gameobjects that use the same material...

Thanks for reading.Any help would be appreciated!

Vatsal