Unable to see the feed from TAXII Server

We have developed the TAXII 2.1 server as per the protocol mentioned in the documentation from TAXII: https://oasis-open.github.io/cti-documentation/taxii/intro.html 

And we successfully configured our TAXII in the Azure sentinel as mentioned in the doc: https://docs.microsoft.com/en-us/azure/sentinel/import-threat-intelligence#adding-threat-indicators-to-azure-sentinel-with-the-threat-intelligence---taxii-data-connector 

But when we tried to look at the incoming feeds, it's zero.

Sample received Feeds Looks like this:

{
"more": true,
"objects": [
{
  # Threat Feed

}
],
"spec_version": "2.0",
"type": "bundle"
}

Note: We are using the Basic Auth

Can someone please assist me in what went wrong and how I can fix the same?

Thanks in advance.