The 404 errors you were seeing on the preview URLs may have been caused by a temporary service disruption on Builder.io’s end. At times, preview environments can be affected if certain services are briefly unavailable.
You can always check the real-time status of Builder.io services here: Builder.io Status Page: This page will give you up-to-date information on whether any services are down or experiencing issues.
At the moment, the preview URL you shared appears to be working. If you encounter this issue again in the future, we recommend checking the status page first. If everything looks operational and the issue persists, please feel free to raise a query with Builder.io Support, and the team will be happy to investigate further.