Cloudflare has implemented a fix for the issue: https://www.cloudflarestatus.com/ We will monitor for another hour to confirm before marking as resolved.
We have begun receiving reports of Cloudflare-enabled domains intermittently receiving empty form/POST submissions.
Based on the reports we've seen so far, this appears to be related to a broader upstream issue impacting Cloudflare rather than an issue specific to our platform. We are monitoring the situation and will share updates as more information becomes available.