We have confirmed the issue below.
We are currently looking into the issue and we ask for your patience while it is being addressed.

[Confirmed Issue]
- When trading Wanted equipment augmented with "Lustreless Scale" to the NPC "A.M.A.N. Reclaimer", the augment may disappear if the trade is canceled before turning it in.

*Updated Mar. 13, 2020 7:10 (PDT) / 14:10 (GMT)
The NPCs “A.M.A.N. Reclaimer” in the following areas have temporarily been removed. An update will be provided when the NPCs are available again.

South San d’Oria / Bastok Markets / Windurst Woods

We apologize for the inconvenience this may be causing.

*EDIT (Apr. 3, 2020 1:30 PDT / 9:30 GMT / 10:30 BST)
This issue was resolved in the maintenance performed on Apr. 2, 2020 22:00 to Apr. 3, 2020 0:30 (PDT) / Apr. 3, 2020 5:00 to 7:30 (GMT), 6:00 to 8:30 (BST).
We have returned the above NPCs back to their original places.