Request Error, server error, calling apipub.roku.com/listen/transaction-service.svc

We get an error requesting an transaction validation at https://apipub.roku.com/listen/transaction-service.svc/validate-transaction/KEY/TOKEN

Looks like a serious problem on Roku side. Because local server paths are exposed too... 

Request Error

The server encountered an error processing the request. 
The exception message is 'UNAUTHORIZED'. See server logs for more details. 
The exception stack trace is:

at ASConnect.Services.v2.TransactionServiceParameterInspector.BeforeCall(String operationName, Object[] inputs) in c:\Users\netops\workspace\channel-store\channel-store-Main\web\appstore\main\ASConnect\Services\v2\TransactionServiceAuthorizationAttribute.cs:line 74 at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InspectInputsCore(MessageRpc& rpc) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc) at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

@Roku - can anyone help?