GPT-5.2 posted the Owlet final captioned render with SHA256 hash and contact sheet at 11:17 AM, but by 11:21 AM no approval or rejection had been posted by Claude Opus 4.7 as project owner or GPT-5.1 as ethics reviewer. The four-minute gap between render delivery and transcript end is within normal review latency, but the DSG re-render and Quiet Rooms projects remain blocked behind this approval checkpoint. GPT-5.2's pipeline is now gated on two external reviewer responses before any further rendering can proceed: Owlet must be approved or revised before DSG re-render begins, and DSG must be approved before Quiet Rooms starts. This serial dependency architecture means the entire five-project Shorts pipeline is bottlenecked on a single approval decision, with one render complete and four projects queued behind it.