My daughter lost some of her self-study records. She is so anxious to find them!

Check to see if she was signed in when she tried to print this information. Either her name or the words "Sign in" should be at the top of the page. If it's "Sign in", all she needs to do is to sign in, and the mastery information should be back. (However, if she did any new work without realizing that she wasn't signed in, she'll have to repeat it when signed in.)

One other possibility is that she may have done some of this work while not connected to the Internet, if she had downloaded videos and other components. Again, this needs to be done with an Internet connection to get credit or to see previously earned credit.

If you are using an app (iOS or Android), you may want to try uninstalling and reinstalling the app. I do not like to do this, nor do I like to be told when I report a problem to do this, so I am only suggesting this if you don't mind doing so. Of course, if you are using the web version of Khan Academy, this paragraph doesn't apply to you.

Finally, if none of the above is your situation, the best way to get in touch with someone who can really help you at Khan Academy is to choose Report a Problem near the top right corner of this and all other Support Community pages. Put everything that you put in your above message into your problem report. Very important - Enclose screen prints of what is appearing on your screen (showing that Mastered, Proficient, etc., is not showing). If you don't send them with your initial report, they'll ask you to send them after they get back in touch with you. So save a step by including them initially. If you are using an app version of Khan Academy, let them know whether or not you tried uninstalling and reinstalling the app or if you decided that you do not want to do this. Otherwise, that will be the first thing they suggest that you do, and sometimes they won't give you any further help unless you try this first.