Collectables acheivments

So i noticed i did not have the collectables for Catacombs. So i went around and hit them and it ticked down.

But i did not get the acheivement?

This happened on paris as well. I noticed that there are more coin collectales than what the game asks to collect.

Do i have to get all of them, not just the ones that tick down the counter?

It seems buggy, because i got the acheivment in the same game on cataconbs for beating it on normal.

any ideas?

Collectables acheivments