Since June 7 (still ongoing June 8), every Production Trading API request has failed with HTTP 503 for more than 24 hours. The 503 is not an eBay API XML error. It comes back as a generic Akamai CDN page (server header AkamaiGHost, content type text/html) with the message "Service Unavailable - Zero size object". The same 503 happens for any call, so it is not specific to one request. Importantly, the legacy Trading API is the only thing affected. From the same server and same IP, eBay REST APIs (Sell and Buy) all return 200 OK at the same time. OAuth token refresh also succeeds every time. So our credentials, keyset, and IP are all valid, and only the Trading API origin is unreachable. Is anyone else seeing persistent Trading API 503s right now, or can eBay confirm a known issue with the Trading API origin? I can share exact response headers on request. Thank you.