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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 email form.

Unable To Export Into .Moc3

I've seen many other with the same problem, but I have tried many of the solutions and still wasn't able to export the model.

The export message would pop up with the loading bar and after 10-15 minutes it would simply disappear, and no files have actually exported. I have also tried exporting as 1/2 of the original texture size but it still wouldn't export.

- Live2D Software Version: Cubism Editor 5.1.00 beta 1
- OS & Version: Windows 10
- PC Model: Custom build
- Graphics Specifications: NVIDIA GeForce RTX 2060
- CPU: AMD Ryzen 7 3800X 8-Core processor
- Memory: 16GB

I will upload the .CMO3 file and the Log File to this link
https://biz.datadeliver.net/posts/OwM10UCofQAM

Thank you

Comments

  • I have same question!!!
  • Hi @SusuAwoo

    Thank you for using our products.

    As we have already answered in another topic, this model may be failing to export due to very heavy data for some reason.
    Please refer to the manual first to see if there are any factors that may be causing the data to be heavy.

    Possible possibilities are as follows
     The PSD is too large.
     Extended interpolation is being used extensively.
     Parameters are not properly created, etc.

    We apologize for the urgency, but please do not divert data boxes from other topics as this may cause delays in our response.

    Best regards.
  • Hi @konig135679

    Thank you for using our products.

    Please check for any problems based on the above answers.

    Best regards.
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