History of the bug, for the record:
- Reported in TestLive before the update 2.1 went live: Bug? Unappetizing Fish and Shrimp No Longer Produce Ichor
- Update 2.1 goes live, patch notes say “Ichor is no longer produced by fish other than those of exotic rarity”: PC Update (28.10.2020) - Update 2.1: Economy update, Character re-customization and Family Sharing settings
- Reported again in live, acknowledged by @Ignasi: [Bug] Cooking Exotic Fish Does Not Produce Ichor
- Reported again in live, not acknowledged by Funcom: Ichor does not seem to be available
Last response from Funcom was on October 29th.
PS: This is why I keep saying we need an issue tracker.