Previews used to ship the full padded (handle-included) render to
clients, with an artist manually pulling picture lock and hand-trimming
the comp to match. The automated preview stage now trims the client
comp to the picture-lock edit itself (a fixed handle count off each
end, per the studio's existing convention) and separately builds an
ungraded, full-duration picture-lock reference MP4 as a diagnostic
sidecar to check back against. A new "No Picture Lock" panel checkbox
is the single override for shots where picture lock is missing or
wrong, falling back to today's untrimmed behavior.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>