Postman responds with "Error: aborted message" Could not get a response when a response IS sent

Our API use to respond with a “Not logged in” kind of error if they were not authenticated or the JWT token had expired but now we get a Error: aborted message instead (could not get a response).

But the API has not changed and is still responding as Swagger shows so something has changed with Postman?

Please help resolve this ASAP since we were about to do a demo of our API.

Any help would be greatly appreciated.

Many thanks,
David.