We're running the container preview in AKS and our containers are filled with the following exception:

fail: Microsoft.CloudAI.Containers.Diagnostics.ExceptionMiddleware[0]

  Could not load type 'System.Net.Http.HttpStatusCodeExtensions' from assembly 'Microsoft.CloudAI.Containers.Common, Version=1.1.1201.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. SubscriptionId='' RequestId='d1845cb5-99d0-46e3-b3e0-5ebf81ac51d9' Timestamp=''

System.TypeLoadException: Could not load type 'System.Net.Http.HttpStatusCodeExtensions' from assembly 'Microsoft.CloudAI.Containers.Common, Version=1.1.1201.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
at Microsoft.CloudAI.Containers.Controllers.VisionControllerBase.CreateErrorResponse(HttpStatusCode statusCode, String code, String message)
at Microsoft.CloudAI.Containers.OneOcr.OcrControllerBase.GetTextOperationResultWorker(Guid id) in /source/src/OneOcr.Common/Controllers/OcrControllerBase.cs:line 92
at Microsoft.CloudAI.Containers.OneOcr.OcrController.GetTextOperationResult(Guid id) in /source/src/OneOcr.2.0/Controllers/OcrController.cs:line 108
at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIIndexMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext)
at Microsoft.CloudAI.Containers.Diagnostics.RequestCorrelationMiddleware.InvokeRequestCorrelationMiddleware(HttpContext httpContext)
at Microsoft.CloudAI.Containers.Diagnostics.RequestCorrelationMiddleware.Invoke(HttpContext httpContext)
at Microsoft.CloudAI.Containers.Diagnostics.ExceptionMiddleware.Invoke(HttpContext httpContext)

Is this expected? Is there a resolution?