I noticed that when i want to search for an item in the exchange i cant search for a specific quality. Whenever i want to see the price for an item with a very rare quality it does not show any results.
But when i put the search option for "any quality" and i browse down the pages i can see that there are very rare items.
Definitely a new bug. You can select the rarity as normal but rather than using the 'search' button you need to double click the item type. So for impulse engines, type the item name in, select the rarity, and then double click on Impulse Engines category.
Doesn't work for food though, or components, which is annoying.