The ethics screen never works, again because of this huge loophole.
Ethics screens are a smokescreen that actually violate the law, because the act requires disclosure whenever you recuse yourself or step aside from participating in a decision, discussion or vote. The ethics screen allows you to not do that, so you're violating the law. What's hidden is that, in fact, you're participating 99% of the time in decisions that affect your investments, because of this huge loophole.
Again, you do not have to step aside when you're dealing with a matter that applies generally, and 99% of decisions apply generally, so the screens are a smokescreen that hides conflicts of interest. They do not stop them or prevent them in any way.