This issue needs to be tested in an Android device (1 is enough). If the app was already installed in the device, reset the user tours. There are 2 ways to do that:  Uninstall and reinstall the app. Go to More > App settings > About > Moodle Mobile 4.1.0-dev > Developer options > Reset user tours. Open the app and enter master site (if you haven't entered already). Check that a user tour is displayed. There is a "security margin" to avoid missclicks, and it will be tested in the next steps, so you will need to be a bit fast. In master site, 2 user tours are displayed in My Courses, one after the other, and we'll test this margin in the second one.  Click the "back drop" (outside of the box with the explanation). Check that the tour is dismissed and the next one appears. Click the Android back button as soon as the second tour appears. Check that nothing happens. Wait 1 second and click the Android back button again. Check that the user tour is dismissed. Open a course, a user tour will be displayed when the course index button is displayed. Click the "back drop" as soon as the tour appears, check that the tour isn't dismissed. Click the button in the tour. Check that the user tour is dismissed. Open a forum discussion. Check that a user tour is displayed explaining that you can swipe. Click the Android back button (at least 1 second after the tour is displayed). Check that the tour is dismissed. This one cannot be dismissed clicking the "back drop" because the tour fills the full screen, it will always be displayed.