I've encountered a very strange issue when using PlayFab's C# SDK on a Kubernetes instance.
My auth server exchanges tickets with PlayFab using the `/Server/AuthenticateSessionTicket` RPC, via the PlayFab C# SDK. When running locally, this works fine. However, when it's running in a container in Kubernetes (on Google Cloud), I consistently get 'Invalid JSON' exceptions back from the SDK. I sent a HTTP request myself rather than using the SDK, and it seems this may be because PlayFab is responding with HTML (a bad request page), rather than JSON, which is very odd. My HTTP request set the correct content-type header, so far as I can tell.
I've verified that my secret key and configurations are correct and the same as they are when running locally. Are there any special considerations I need to take into account when using PlayFab from within Kubernetes? Perhaps some header or encoding that is getting set by the SDK?