Aetherial Reduction on fish not possible

[Nekokra]

Edit: Issue resolved. Didn't knew about collectable gloves... Thx, to DrGirlfriend fo show me the error of my ways
While beeing able to fish: Thaliak Caiman and Tupuxaura and their tool tip saying, they are reducible, you can't. This makes aquiring of Seaborn Aether impossible, therefore entire Heavensward endgame crafts unobtainable.

Date & Time: 2021-12-29 21:00 CET
Frequency: Always
World name: Shiva
Character name: Nekokra Terias
Retainer name: None
NPC name: None
Monster name: None
Class/Level: Fisher
Party or solo: Solo
In-game time: 3:00 p.m. et
Area and coordinates: Azys La, 40-18
Steps:
1. Fishing for Thaliak Caiman orTupuxaura
2. Getting them
3. Not beeing able to do Aetherial Reduction
4. Not being able to aquire Seaborne Aethersand
5. Crafts like Boltmaster's Slacks or Boltmaster's Top Boots cannot be crafted anymore

Screenshots:
https://imgur.com/a/6tP2qt0