Occasionally, when working in the administration screens for Users or Projects, the Save buttons are missing or not visible.
This can happen when working in the Chrome browser under Windows.
What has actually happened is that the window has opened partially off the screen.
This can happen due to corrupt cache files or extensions that tamper with the window position. The behavior is often not seen in a different profile or under Incognito mode.
There are a few ways to attempt to resolve or work around this
1) Disabling extensions
2) Clear cache
3) Try incognito mode
4) Try a different Chrome profile
5) Another browser will often not show this behavior