Analytics API returning 403 Forbidden for specific reporting scopes in Premium App

What is the reason the /api/v2/analytics/details endpoint is returning a 403 Forbidden error for our Premium App service account? Context: We are deploying a custom reporting dashboard that aggregates queue performance metrics across multiple tenant organizations. The service account has been granted the analytics:view and analytics:export scopes via the AppFoundry registration. Token generation via OAuth 2.0 client credentials flow succeeds without issue. The request payload includes standard filters for date range and queue IDs. The error response body indicates insufficient permissions, despite the scopes appearing correct in the developer console. Question: Is there a known limitation regarding cross-organization analytics access for Premium Apps, or are we missing a specific configuration step? We have verified the organization IDs match the token context. The issue persists across different regions and does not correlate with API rate limits. Any insights into required additional scopes or backend permission checks would be appreciated. We are using the latest JavaScript SDK for authentication.