OpenAPI v3 cookie parameters not rendered

I know I'm old-school using cookies. However, I still want to document their use. If I render the following v3 yaml file, no cookie parameter is rendered:

openapi: 3.0.3
info:
  title: Title - OpenAPI 3.0
  description: |-
    Description.
  version: 0.0.1
paths:
  /cat:
    get:
      summary: summary
      description: |
        Description
      parameters:
        - name: COOKIENAME
          in: cookie
          description: Description
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Cat'
components:
  schemas:
    Cat:
      type: object    
      properties:
        name:
          type: string
          description: name
          example: Simba

If I change parameter type from cookie to path it works. In the swagger editor it renders fine.

Start by rendering the OpenAPI v3 YAML in the issue and compare the missing cookie parameter with the same parameter changed to path. Trace the parameter-rendering path for these two cases; done means the COOKIENAME cookie parameter appears in the generated documentation.