Bob Nerijus D. can you all provide the URLs that you are trying to import? In most cases, this fails due to a firewall or bot blocker on the host side and is not something we can prevent on our end. If you have access to the host settings, and you can temporarily disable these features and try to import, then it should work. Or in some cases, adding relume.io to a whitelist to allow our crawler to access the site to import it.