Didn't get achievement?

I finished top 3 for Groovy in Back to the Code, but I didn’t get the appropriate achievement. Is this a bug or am I misunderstanding how the requirement works?

same here for the great escape Challenge, I was first VB (my tee-shirt cdg swear me very well ;-)) but I didn’t get achievements.

@Ozzie @Skleroz you need to summon admin when you need them or else they won’t see your post (unless they’re as crazy as me and redirect every post of this forum in their mailbox)

for example @MaximeC could probably answer you.

Don’t worry, you’ll get your achievement ;). The reason why it is not done yet is because we have changed some achievements this summer and these in particular apparently don’t work for multi challenges but only solo challenges. We will fix that.