The fever movies' root timeline is a state machine: frame 0 (`init`) parks the
fly-in copies of the transition -- a second sky plate, the wave scrollers, the
boats -- at alpha 0, and the steady state is the `fever` label, where only
fever_mc remains. The export took the root's frame-0 children and forced the
parked ones visible, so the third backdrop drew its sky and its big waves twice
(one row over the other) and the boats and Mt Fuji ended up behind an extra wave
layer. movie_export now takes the root's children at the `fever` label and only
the ones shown there; all three fever backdrops re-exported.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
TaikoZhongandClaude Fable 5.1
818036e505