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<b class="Bold"><big>Live2D Cubism</big></b>
<a href="https://www.live2d.com/en/"><alt="Cubism Products and Downloads">Cubism Products and Downloads</a>
<b class="Bold"><big>Cubism product manuals and tutorials</big></b>
<a href="https://docs.live2d.com/cubism-editor-manual/top/?locale=en_us"><alt="Cubism Editor Manual">Cubism Editor Manual</a>    <a href="https://docs.live2d.com/cubism-editor-tutorials/top/?locale=en_us"><alt="Cubism Editor Tutorial">Cubism Editor Tutorial</a>    <a href="https://docs.live2d.com/cubism-sdk-manual/top/?locale=en_us"><alt="Cubism SDK Manual">Cubism SDK Manual</a>    <a href="https://docs.live2d.com/cubism-sdk-tutorials/top/?locale=en_us"><alt="Cubism SDK Tutorial">Cubism SDK Tutorial</a>
[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>

Does anyone know how to solve this error?

VanilaVanila
in Help
Failed to verify a valid license because the system time was not set correctly. (1 ,-40) )

I have tried to run the program but it always exits and upon entering it does not allow me to save or export. I thought it was because of the free license but in general it doesn't work for me!
My computer time is fine, so I don't know what else it could be.
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