One of my achievements is grey when it should be blue. It's been like this for a very long time but I didn't bother reporting it because I thought it may be resolved by now.

The one that is glitched for me is under games: Beanbag Collector Collect 10 Beanbags! 314/10

I'm hoping that it can be fixed so that the achievement will be added to my final tally :)

Have you visited the 'Your Collection' Page under the Beanbag Collection link in the Games section? ^_^ Either that one or the 'Prizes' page gives you the Achievements, can't remember which one XD

I had in the past when the glitch first happened, but not recently. Just tried it again and yes it worked, problem solved. Thanks :)