Can you tell me which frame exactly does your render fail? and which comp are you rendering?
I will look again closely at the file and try to offer a solution for you.
The user: HASSAS is the only other user who had this problem, did you manage to get in touch and ask about the his solution?
As Mark mentioned, it wouldn’t have passed testing if the file is at fault.
However I’d like to get to the bottom of it and figure it out if you haven’t already, you mentioned your AE knowledge is not vast, lets see if we can solve it!
Let me know about the items above, and I’ll investigate as much as I can for you.