Lambda 在全宽覆盖下将重复的过时内容渲染为高度/4 的条带（repro repo）

Environment

Remotion / @remotion/lambda	4.0.525 (first seen on 4.0.428)
Lambda Chrome (per docs/lambda/runtime and the @remotion/lambda package)	149.0.7790.0 on 4.0.525; 144.0.7559.20 on 4.0.428; 133.0.6943.141 on the 4.0.372 we ran before
Function	mem 4096 MB, disk 10240 MB, timeout 360 s, us-east-1, default gl
Render	renderMediaOnLambda, codec h264, imageFormat jpeg q90, colorSpace bt709, framesPerLambda 80, scale 2 (3840×2160). Also reproduces at scale 1.
Composition	1920×1080, 30 fps, only remotion + react
Clean on	renderMedia on macOS 15 (same bundle), Studio, Player
Not seen on	4.0.351 → 4.0.372 (Lambda Chrome 133) across a year of daily renders of this kind of content

Reproduction

Repository with a fresh Remotion project pinned to 4.0.525: https://GitHub.com/Rameshv/remotion-lambda-strip-ghost

src/LambdaStripGhost.tsx (249 lines) is the whole reproduction: two compositions, only remotion/react imports, inline styles, system font, a few SVG icon paths embedded (Phosphor Icons, MIT). Same file attached here: LambdaStripGhost.tsx.