Recently beat Lost Planet 2 on easy normal hard and extreme. The achievements for hard and extreme won't unlock despite ensuring that I completed both prologues and the hidden route. Frustrating.
The thing is, this isn't the first time I have experienced this, there have been a few that I can't remember off-hand. Had a problem with Lego Batman that was solved by starting again, and I've never 100% the first Lego Indy - not picking on lego games though!
I know one achievement in Red Dead was glitched as well. Think it was a Liars Dice one.
Am I alone?!