Rasa X not working properly

An update:

I tried installing Rasa X in a Linux virtual machine as well using the quick installation guide.

The installation went all fine.

But I am facing the same issue which I was facing with pip installation!! The bot is detecting intents and actions correctly, but not responding

This is screenshot of a conversation at admin login:

It can be seen that actions are detected but NO RESPONSE.

This is screenshot from tester’s page:

They get absolutely no idea whether the bot is doing anything or not!

Is is anything with compatibility issue of Rasa X and Rasa nlu?

Rasa Version - Rasa 1.6.1 Rasa X - stable version (https://storage.googleapis.com/rasa-x-releases/stable)