The picture (aspect source) no longer wins over or blocks the reference-derived start on video-in pipelines; a test pins that adding the picture changes nothing about the references. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tw9fjYBYFyV8YG5YDfYPRb