Problem placing serviceDeskPortalHeader panel on Approvals Page

Hi,
is this a known issue:
I declared several panels for different pages:

 "serviceDeskPortalHeaders": [
      {
        "key": "sd-portal-header-help-center",
        "url": "/announcement-banner?message_key=helpCenter",
        "pages": [
          "help_center"
        ]
      },
      {
        "key": "sd-portal-header-portal",
        "url": "/announcement-banner?message_key=customerPortal",
        "pages": [
          "portal"
        ]
      },
      {
        "key": "sd-portal-header-view-request",
        "url": "/announcement-banner?message_key=requestsDetailsView&request_type_id={servicedesk.requestTypeId}",
        "pages": [
          "view_request"
        ]
      },
      {
        "key": "sd-portal-header-create-request",
        "url": "/announcement-banner?message_key=requestForm&request_type_id={servicedesk.requestTypeId}",
        "pages": [
          "create_request"
        ]
      },
      {
        "key": "sd-portal-header-my-requests",
        "url": "/announcement-banner?message_key=requestsPage",
        "pages": [
          "my_requests"
        ]
      },
      {
        "key": "sd-portal-header-approvals",
        "url": "/announcement-banner?message_key=approvalsPage",
        "pages": [
          "approvals"
        ]
      },

but on the Approvals Page I got panel from “my_requests”:


Any idea?

Regards,
Richard