I think previously when you sorted your backpack by value it also sorted by item. For example when you had 5 craftable modest metal pile of scraps and 5 modest pile of hats (both are priced the same) they would be listed as 5 modest and then 5 modest metal pile of scraps. However this changed so that it isn't sorted by item anymore. Which means you can see 3 modest metal pile of scraps and then 5 modest and then 2 modest metal pile of scraps again.
Now, I'd like to see the function back where if you sort by value it also automatically sorts by item. That way you'd be able to immediately see how many of a certain item you have in your backpack without having to type it in the search bar.