Item variables not working

The Variables in Items return nothing even if using the exact config in https://git.lumine.io/mythiccraft/mythiccrucible/-/wikis/Items#variables

ExampleItem:
  Material: STONE
  Variables:
    test: hello
 
ExampleItem_Templated:
  Template: ExampleItem
  Variables:
    mammamia: world
  Skills:
  - message{m=<item.variable.test> <item.variable.mammamia>} @self ~onUse

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Using Crucible v2.2.0 build #3966 (problem persists in all the other dev builds) Server version 1.21.4 (problem persists in all 1.21 versions)