Puck button integration with android device.

Yes, I disconnected it with Web IDE, then paired it with android device, and then ran the Android App.

To receive advertising data you don't need to pair.

In fact, pairing usually creates a connection, which then stops the device from advertising.

That could be your issue? First, I'd try making sure you can receive the advertising data using nRF connect - then you can see if the problem is Puck.js or your app.