client does not see keyword results

[jpoet]

When returning a result, my server side code does something like:

    std::string ts =  "2016-03-14 9:56:13";
    autobahn::wamp_kw_arguments res;
    res["ts"] = ts;
    res["kw"] = -15;

    std::tuple<int> status = std::make_tuple(5);

    invocation->result(status, res);

and the server log shows:

TX message: yield [1, {}, [5], {"kw"=>-15, "ts"=>"2016-03-14 9:56:13"}]

So it looks like the keyword result is being transmitted correctly, but the client side fails to see any keywords variables in the result.

                      auto kw_args = result.get().kw_arguments<std::unordered_map<std::string,    msgpack::object>>();

                      if (kw_args.empty())
                          std::cerr << "kw args empty.\n";
                      else
                          std::cerr << "Have kw\n";

Results in:

kw args empty.

I have tried accessing the keyword arguments every way I can think of and nothing works.

John