I'm facing a really strange issue. Since a few days, whatever achievements/medals I unlock while playing Counter Strike: Global Offensive is now being shown under the 'achievements' section of the game. The 'recently unlocked' achievement it shows, is one which I unlocked almost a week ago. Since then, even though I get the message during the game that i have unlocked achievements, they never show up under the 'achievements' list. Please help me out with this.
I don't know if its happening only with this game or all other games, because this is the only game I currently own on this Steam id. All other Steam games I own are activated on my brother's Steam id.
P.S. I posted this question on the official Steam forums, but never got any response even after 48 hours. hence I'm posting it here.