The icon "Connoisseur of Habr" has disappeared. What could be the reason?

Question

Habr

Passing a quiz in honor of the 15th anniversary of Habr, I learned a lot of interesting facts about this site.
Even though I didn’t really, that is, didn’t join, if I may say so, into your movement, I became very curious to pass this test. The first time I went through 9 questions out of 15, without the Internet, but purely on intuition and logic, but as I described in the first sentence, some things surprised me.
And so I was sadly going to pick up the stickers and close the test, when I suddenly saw the "try again" button and I passed the test 2-3 times, which allowed me to get 15 out of 15, and after a while, the first badge on my profile.
Today, when I went to the site to read about C ++, and then got to my page, I found that the icon was gone.

Answer 1