I was playing with an algorithm that Naoki Nagai posted yesterday and I am getting an error that I can't figure out. For some reason I keep running into OrderSecurityOutsideUniverse when the algorithm attempts to sell YRCW, I believe this is due to the fact that it does not pass the fundamental screening criteria laid out. However, from a post last year it looks like all securities in the portfolio should remain in the universe (see below). What could be going on here?
https://www.quantopian.com/posts/how-to-deal-with-an-ordersecurityoutsideuniverse-error