My app preferences are not updated
The app settings can be changed at any time in the app preferences page.
After you change any value, you must click ' Save' for the new settings to be applied:
At that moment the new settings are applied.
However, please note that the preferences are cached for a minute in your browser so, if you had already opened a page with the app widget in your browser, you have to refresh the cache to see the new settings applied. You can do that easily, for example, by pressing CTRL + F5 if you're on a Windows machine or SHIFT + 'Reload button' if you're on a Mac.
As a last resort, you can always clear your browser cache, but this should not be normally necessary.
Please check https://en.wikipedia.org/wiki/Wikipedia:Bypass_your_cache for shortcuts for all browsers and instructions on how to clear caches.