LOCAL BUILD not turning green despite all rspec tests passing (RSpec Fizzbuzz)

Hi,

The usual Learn popup does not activate after I type "learn" on the command line in Nitrous despite the code below passing all of the rspec tests and the LOCAL BUILD on the right menu on the Learn webpage does not turn green. I've tried typing "rspect" first, closing Nitrous, reopening, restarting Learn.co, and restarting my browser. If I type "learn submit", it works as expected and PULL REQUEST on the Learn web page turns green. I verified on my GitHub account that it was submitted. I'm able to go to the next lesson, but the bubble to the left of "RSpec Fizzbuzz" remains unchecked in the left hand menu.

def fizzbuzz(val)
  if ((val % 3 == 0) && (val % 5 == 0))
    return "FizzBuzz"
  else
    if ((val % 3 == 0) || (val % 5 == 0))
      if (val % 3 == 0)
        return "Fizz"
      else
        return "Buzz"
      end
    else
      return nil
    end
  end
end

learn-co-curriculum / rspec-fizzbuzz

LOCAL BUILD not turning green despite all rspec tests passing (RSpec Fizzbuzz) #48