Rasa 2.1 bug - wrong sender in action server

Hey,

I’ve just tried to upgrade to Rasa 2.1.0 and immediately noticed that action server API is not working properly.

Rasa correctly receives a message, predicts an action and sends it to action server URL. But the value of sender id is always default.

Sending

{
    "sender" : "test_sender_1",
    "message": "predict some action"
}

Receiving in the action server

(
 'next_action' => 'action_core_fallback',
 'sender_id' => 'default',
 'version' => '2.1.0',
 ...
) 

Expected behavior, action server should receive this

(
 'next_action' => 'action_core_fallback',
 'sender_id' => 'test_sender_1',
 'version' => '2.1.0',
 ...
) 

It works well with Rasa 2.0 and breaks after upgrading to 2.1.

I have the same issue, I have been debugging like crazy for two days, after this post I realize it is a bug…

Having the same issue here too, I had to downgrade to 2.0 to make it work again…