SOLVED
Armorsmithing crafting station.
Try using a weaponsmithing crafting station instead of the mystic forge.
Armorsmithing crafting station.
Not affiliated with ArenaNet or NCSOFT. No support is provided.
All assets, page layout, visual style belong to ArenaNet and are used solely to replicate the original design and preserve the original look and feel.
Contact /u/e-scrape-artist on reddit if you encounter a bug.