These are Example Overwrites if you desire to prevent certain Items / Structures from beeing uncraftable!

1. Remove/Hide the "Skill_Goldbank" Engram by Ini-Setting:
Example: OverrideNamedEngramEntries=(EngramClassName="Skill_Goldbank_C",EngramHidden=true)
This Hides the Engram! Item still can be spawned in / dropped from Loot if you want to!

2. Making the "PrimalItemStructure_GoldBank" Item Not Craftable:
Example: ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalItemStructure_GoldBank_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemResource_Wood_C",BaseResourceRequirement=1.0,bCraftingRequireExactResourceType=false)))
This would require 1 Ark Wood to craft the Goldbank and would render it uncraftable!
Item still can be spawned in / dropped from Loot if you want to!