Something isn't set right in your settings. I looked at your account on SteamDB and they can't see anything either. Check your privacy settings again and make sure they are set as described in this article.
Valve's Changes to Privacy Policy Affect Our Ability To Scan Your Games57 LEGO game completions on 6 different platforms across TA, TT, and TSA! Over 3,100 achievements/trophies earned in LEGO games!