So it seems Legs & Louie is having the same issues
Is it a one-hour task that they share? Could be the same issue affecting Burns/Smithers.
Forum Discussion
It seems it gets cancelled whenever you start whacking snakes. The Rich Texan suffers from this bug as well. I had to let the full 12 hrs go without whacking a snake to get him to complete his 2nd quest where he was riding the bull
