Css flexbox challenge seems buggy

I have set display property to flex for .follow-btn as asked in the challenge but it still doesn’t pass the case for it.
css flexbox challenge 3 or 4

For future reference, you can link to the challenge directly so we know exactly which challenge you are talking about.
I’m guessing this is the one:

If you take a close look at the requirement, it asks you to add display:flex property to more than just follow-btn, namely:

  • header
  • .profile-name
  • h3
  • h4
  • footer
  • .stats