Guild Wars 2

Green Wood Plank doesn’t show in discovery panel at the artificer station, along side a few other materials that don’t.
According to GW2 DB, I need 6 Green Wood Planks and a Mighty Green Inscription to craft an Asuran Trident, and that I need to be a lvl 5 artificer. I’m lvl 16 artificer, and I have the inscription, but I can’t get the wooden planks to show in Discovery.
I tried having them in my inventory, and then in the bank, but both don’t work.
Tried re-logging, and restarting the client, but still nothing.. Help!

Not a bug, the recipe can not be discovered, but can only be learned.
- Go to metrica province (Jeztar Falls Waypoint)
- Do if needed the heart ‘Help Blopp stop the Inquest from using hylek poison to drive lake creatures crazy’
- Talk to the renown heart NPC ‘Blopp’
- Buy the recipe from him for 28 karma
- double click the recipe to learn it
Now you can craft the weapon (not discover it)