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[About Cubism Editor / SDK 5.4 Alpha](Updated: July 14, 2026)

You can download the alpha installer from the dedicated forum below.
If you have any feedback regarding the alpha version, including feature requests or bug reports, please use the same forum.

Cubism Editor / SDK 5.4 Alpha Forum
https://creatorsforum.live2d.com/c/cubismeditorsdk54alpha/

[Regarding macOS Tahoe](Updated October 16, 2025)

macOS v26 Tahoe is now supported!
We advise against upgrading your macOS at this time as it may cause Live2D products not to function correctly.
Upgrading macOS can also cause you to lose your Cubism Editor license file.
Please make sure to deactivate your Cubism Editor license before upgrading the macOS.

For more details:
https://help.live2d.com/en/other/other_09/
For inquiries regarding issues with license purchases or license activation errors, please contact us through the <a href="https://www.live2d.jp/eng/contact/?redirect=1">email form.</a>

Can sound be used with animation files ?

BlueRainAnimeBlueRainAnime
in Help
Hi, i have imported a sound file in the animation editor; if i play the timeline, the model moves and the sound is heard correctly. But if i export the animation for runtime usage (File-> Export for runtime-> Export motion file), and then try to use the animation in a tracking software (Vtube Studio), the animation plays but the sound is not heard. The animation file is 2 kilobytes in size, while the audio file alone is 86 kilobytes, so it's obviously not included in the animation file. Isn't audio included in the .motion3.json files ? Thank you
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