Import repositories page won't show any error if the connection to api url of external services like Bitbucket Cloud is blocked by proxy or firewall. It appears that initial connection is successful but HttpRequestFailedEvent is not handled in UI
outbound proxies or firewalls configured to block certain external connections
Configure outbound proxy to block connection attempt to api URL of BItbucket cloud https://api.bitbucket.org
Successfully list the repositories after the "Connect" button is clicked.
When clicking on the 'connect' button, nothing happens. It just gets grayed out and stays on the page unless interrupted.
Allow connection through outbound proxy or firewall