Bell Choir - Seasoned Toymaker
I got the same issue, but maybe you need to max the AP out for it to progress the meta?
EDIT: Nevermind it seems to give +1 to the achievement even if it does not tick off the thing from the meta.
(edited by Malediktus.9250)
@Malediktus Thank you for your answer but It doesn’t seems so in this case, I’m 11/18 now and counting the singles meta activity (ticked off) are the same amount (11) ergo the Bell chooir achivement it’s not counted 
I am at 18/18 with only 17 achievements ticket off in the list, so the 18th must be coming from the repeatable
Aaaahhn, that’s good! Thank you very much :>
(edited by heller drake.2617)
I have this bug. I’ve repeated the achievement “The Bells of Wintersday” 13 times, so I’ve maxxed out the AP that comes from it, yet it’s not ticked off on my list.
EDIT
It’s not just this repeatable achievement that’s not being counted. I also have the very same bug for “Toypocalypse Survivor”. I have finished it once, yet it’s not being counted towards the main achievement.
EDITEDIT
The exact same thing that happens for those two achievements also happen for the “Winter Wonderland Mastery” as well.
(edited by Miss Lana Too.5794)