J-BusinessDirectory - Listing is not appearing (port in url stripped)

We had version 5.2.7 and things were working fine. After updating to version 5.8.25 now having an issue opening listings from the category page. My URLs include a port number but when clicking through to a listing the port number gets stripped and so does not work (eg instead of https://servername:8890/listings/listing-name it goes to https://servername/listings/listing-name - the port 8890 gets removed)

We are in the process of migrating from Joomla 3 to Joomla 5 but this problem exists regardless of whether I update the component in J3 or J5.

What could be causing this?

Thanks in advance.

What happens info you get if you set Debug System: ON and Error reporting: Maximum in https://www.site.com/administrator/index.php?option=com_config ?

The port number is typically not included in URLs for standard websites, as browsers and servers assume port 443 for HTTPS and port 80 for HTTP by default. This is why the port 8890 is being removed when the URL is generated.

Are you planning to always use this custom port? If so, we can explore potential solutions to ensure it remains in the URLs. Let us know your requirements, and we’ll assist accordingly.