Sorry if this is the wrong forum, but I guess the problem is due to the new wardrobe.

As per title, my Filled Wardrobe achievement has not updated for some time, I have viewed the organise page in the new wardrobe and it hasn't triggered it.

The old organise wardrobe used to tell you your total items, would be nice to have that feature in the new one too.

I'm having this same problem and have tried the same thing.
hopefully it will be fixed soon

Chiming in with the same issue (presumably this has simply not been implemented yet). Additionally, layer-related achievements do not get updated either.

I know for layer achievements this page used to trigger them. Could be the same issue as the main wardrobe count but might be worth trying it?

That page actually still seems to work for updating the achievements (at least for me just now), it's just not linked to the current wardrobe. Presumably at some point a corresponding page will be made in the new wardrobe...

I am also having the issue I should be showing 11,600 but only 11,403. I hope this get fixed soon. Thank you!