well this all depends on the methods you are using to acheive
this, what the heck is it, and what are you loading? are these
assets on-board, or external? but it should be possible to do
without crashing, you must have an error in the loop code that is
propagating these instances.
can you give a better explaination of how you are trying to
do this, and provide a code example of your looping function (use
the 'attach code' button in your reply)