Is the item you are looking for in a drawer? Because if it is, that is why you cannot find it by searching all your items. It only searches non-drawer items.

That is not really answering my question. Was it ever put into a drawer even in the old wardrobe? If it was and you never removed it from the drawer, it would still be in that drawer in the beta.

The only other reason I can think of for it not finding an item is if you go to lets say...page 2 or 3 on the wardrobe. Then you search for an item that has like 2 search results. Because you are on page 2 or 3 it will not come up with anything because you are not on page 1 of the results. So before searching you need to make sure you are on page 1 so that you will always see the results.