[Closed] Object reference is lost

Hi! Here is my piece of code taken from a bit larger context:

_tmpname = OBJ.name
if _contains == false then
(

  																while polyOp.getNumFaces OBJ > 1 do
  																(
  																	
  																p = PolyOp.getElementsUsingFace  OBJ 1
  																polyOp.detachFaces OBJ p asNode:true
  																_tempElmObj = objects[objects.count]
  																append _muchForSliceCollection _tempElmObj

  															   _totalelements = _totalelements + 1
  																
  															  )	  
  								  
  															  )
  															   print ("get it" + _tmpname)
  															 OBJN = getnodebyname(_tmpname)
  															   delete  OBJN

And here comes error: Can not delete object which is already deleted

After detach operation, OBJ is marked as “delete scene node” for some reason, while it still exists at the scene. Like, after script is finished working with error, same code end:

OBJN = getnodebyname(_tmpname)
delete OBJN

finds correct object and deletes it. So why it can;t work out after while loop? Is some internal data is not updated or stuff like that?