Do certain items not apply for the hoarder achievement? I show 10,345 in my gallery

Mine, mine, mine 0 0 0 10,404 (10,345)

but only 9,098 when viewing the achievement page

Hoard 10,000 different items in your gallery! 9,098/10,000

I believe for the Hoarder achievements, you need the items to be individual items, so no doubles would count.

I thought the first number is total items and the number in parenthesis represent individual items. I've been going through and taking out the duplicate items every couple weeks.

Have you gone to the edit shop link for that shop recently? That is what updates the amount on the achievement page

Thank you so much. I just tried the edit shop link and I received my achievement. YEAH!!