Hi @dreweastmead, this seems to be an odd case where it seems the nameservers were updated, but for some reason the NS records at bluehost seem to still be active somehow, so the dns lookups are intermittent.
Just as a confirmation, did you already remove all custom domains, then re-add and set the www domain as the default domain? After that, republish the domains. I usually do this after about an hour of changing dns settings if things are not working.
In general I usually first change the dns settings, then add the domains to Webflow. Sometimes if the domains are added first, a reset on the domains in the hosting tab by adding and removing and republishing will help to sync things up.
I should note however, I have tried from multiple locations and cannot see any errors in the published site, it is displaying secure on my end and from several remote machines with no issues at the following domains: