Fragment sets in bulk trade doesn't show any results.

Selecting any of the Fragment sets in Bulk Item Exchange will result in 0 results. Seeing as it's impossible to list them as "sets" in-game (at least afaik) I'm sure it's bugged. It's been like this for a couple of leagues now.

I've seen people list all 4 Fragments of a set individually but they don't show up when searching for a set. Just curious if devs are aware of this and if there's an ETA on a fix? Or if it's working as intended and I'm just missing something?

Anyway, example below.

To my knowledge they have never worked. It would be nice if they could look to see if someone is selling all 4 parts of the set and tally their prices.