Security Scheme not found when included inside a Library

[dagutten]

I am trying to create a common library with resource types. As part of the resource type, I want to include a Security Scheme.

I am trying to add it in two different ways:
A- Adding the security scheme directly in the common library (lib --> security scheme)
B- Adding the security scheme in a library and adding that library in the common library (lib --> lib --> security Scheme)

Using approach B works, using approach A throws "Error: Security scheme 'oauth2Scheme' not found in declarations."

Let me provide the code:

#%RAML 1.0 Library
usage: A common lib
uses:
  securitySchemeFromLibrary: securitySchemeLibrary.raml
securitySchemes:
  oauth2Scheme: !include securityScheme.raml
resourceTypes:
    genericCollection:
      usage: Use this resourceType to represent any collection of items
      securedBy: [ oauth2Scheme ] ## A) This fails with: Security Scheme not found in declaration
      ##  B)  securedBy: [ securitySchemeFromLibrary.oauth ] This works

securityScheme.raml

#%RAML 1.0 SecurityScheme
type: OAuth 2.0
describedBy:
  headers:
    Authorization:
          type: string
          required: true

securitySchemeLibrary.raml

#%RAML 1.0 Library
securitySchemes:
  oauth: !include securityScheme.raml

I can not fully understand why I am a receiving the "not found declaration" error.