Steam recently changed the default privacy settings for all users. This may impact tracking. Ensure your profile has the correct settings by following the guide on our forums.
If your profile is showing up as Not Ranked, please review our rules page and follow the appeal process detailed there.
There is a guide linked within the settings, but it's not recent anymore as the UI and settings have change. I tried to play around for a bit but nothing has changed so far.
You can change them through the PlayStation website. After logging in go to Account Settings -> Privacy and make sure Gaming History is set to "Everyone"
Once you've done that you can run a manual scan here (under Tools on the Edit Account page).