Have you gone back to view the required items for the achievement again? That's usually what triggers achievements like that, although it can take a few minutes sometimes for it to register that you completed it.
I'm having the same issue with Impasta and Rooting for You. I don't know how long ago I finished the achievement (I only check rarely), but the achievement won't reward no matter how many times I refresh, check again, etc.
the only workaround I've found for this that USED TO work (I've been having this issue for a long long time with multiple achievements) is go to the achievements page, click on the "name" of the achievement that's not being rewarded, refresh the page, click on a category in the menu on the left and refresh the page again.. it's a very tedious process but it used to get you the achievement and title.. but I just tried it again with 2 beanbag achievements I haven't been rewarded yet and apparently it's not working anymore.. now I really don't know how to get these achievements that aren't being rewarded automatically for some reason (going to the beanbag collection in my case also doesn't do anything)
I just finished the I-Love-You foods achievement and didn't get it awarded either. However, I AM getting achievements for donating pumpkins to Fantine. Seems that it's just the ones you have to view to trigger that aren't working?
yeah it's mostly the ones where you have to read books to or feed food to your pets or have to have things in your collections and I think the having things in your wardrobe ones too.. I used to be able to trigger them with the method I described above, but something changed that made it not work anymore.. now I have multiple achievements I should have gotten but that won't actually register and i have no idea how to get them..
GUYS I just tried that method with clicking the achievement name and refreshing the page etc. method I described a few posts up again and it's working again for me, so (even though obviously this is a problem that should just be fixed properly) if you want to claim your achievements you can try that too for now :)