Hello.
 
	I was trying to serialize my scene, but it threw an error in line 29 of babylon.2.4.js file.
 
	This is the error:
 
	 
	 
 
babylon.2.4.js:29 Uncaught TypeError: Cannot read property 'length' of undefined
    at r (babylon.2.4.js:29)
    at Function.o.Serialize (babylon.2.4.js:29)
	I think is missing a validation at a for loop
 
for(var a=0;a<t.subMeshes.length;a++){
//...
}
	beacause in my case t.subMeshes is undefine and that seems to be causing the error.
 
	My workarround was to add a validation in order to skip that for loop if t.subMeshes is undefined, but my next problem was at the moment of loading my scene.
 
Uncaught Error: No camera defined
    at i.render (babylon.2.4.m.js:11)
	I attached my scene in json format.
 
	Do you have any idea to solve it?
 
	Thanks in advance.
 
	 
 
	 
 
	 
 
sceneP.zip