Created a quiz. Set up the questions. In Settings, nothing happens when I toggle on "Allow Multiple Attempts." I leave that area, come back, the toggle is on and I have 3 things to choose from (score to keep, number of attempts, waiting period). In true Canvas fashion, new options appear as I make choices. In each case, when I attempt to change an option, nothing happens/no apparent response. I leave the Settings menu and come back, my selection is in place as are any new options.