Hi @Hugo - I experienced a similar error message which I corrected by updating the file URL of the embed that I was creating. By going in and replacing the https with http to reflect the fact that I haven’t got around to acquiring a SSL certificate, all seemed to be work. See attached screenshot. On this topic @elixirgraphics, tell me where does Foundry get this URL from ? Does it pull it down for the publishing settings ? I can’t find the source of this ‘anomaly’. Kind Regards | Justin