# HyperFrames v0.8.159

By Steven Van · 2026-10-15

Snapshots and checks now run in sandboxes without localhost, and snapshot --keep redoes a single still without clearing the others.

HyperFrames v0.8.159 makes check and snapshot work in sandboxes that refuse to listen on localhost, and adds a flag for redoing a single still. [The release](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-159>) also fixes two scene-visibility bugs in [HyperFrames](<https://creatorstoolbox.com/resources/hyperframes>).

## Redo one still with snapshot --keep

snapshot --keep adds to the output folder instead of clearing it, so one still can be redone without losing the others. Each still is named for its time, such as at-1.5s.png.

## Sandbox fixes

- check and snapshot now run where a sandbox refuses to listen on localhost.

- The GPU check uses the same pipe as the render, so a sandboxed check no longer waits 120 s.

## Scene rendering fixes

- A render's first frame shows each scene's starting state.

- A hidden scene's contents stay hidden when a child is set visible. Before, a nested scene's card could paint before its host started. The static-volume-future-set regression baseline changes for this reason.

## Other fixes

A long video conversion in init no longer stalls on ffmpeg's own log. Internal changes cover an offline fetch stub for the var() font fallback test, and a retry when a history fetch stalls in change detection instead of failing the run.

![HyperFrames](<https://www.google.com/s2/favicons?domain=hyperframes.heygen.com&sz=128>)

HyperFrames

Open-source framework for rendering HTML compositions into MP4 videos, built for AI agents and automated pipelines.

[View HyperFrames →](<https://creatorstoolbox.com/resources/hyperframes>)

[Original source](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-159>)

[Read HyperFrames v0.8.159 on Creators Toolbox](<https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-159>)

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Canonical source: https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-159