Unable to get YAML wildcards to properly activate in Automatic1111 ReForge

Hey, I can use .txt just fine, but now trying to use YAML files, it obstinately refused to work no matter what I do. I can't get any form of selection from a YAML to activate, despite it showing up in the dropdowns when I do "__" and type out its name. Once I hit generate, it just prints out the __name/subname__ and doesn't activate.