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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.
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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!
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Upgrading macOS can also cause you to lose your Cubism Editor license file.
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Live 2D Model Wont Export

My file/ model every time I export gets the progress bar for 45minutes to an hour then nothing exports it just closes the bar. All things I have tried from what I found on the forms here are not helping... please any advice or fixes would be appreciated

Answers

  • @Lukotsu

    Thank you for always using our products.

    I would like to know more about the situation.
    Please tell me about your environment.

    Please answer all of the items below.
    - Live2D Software Version: (e.g. Cubism Editor 5.0.00 beta1)
    - OS & Version: (e.g. Windows 10, macOS HighSierra)
    - PC Model: (e.g. MacBookPro 2017)
    - Graphics Specifications: (e.g. GeForce GTX 950M)
    - CPU: (e.g. Intel Core i7-7700)
    - Memory: (e.g. 8GB)
    - Illustration Software used: (e.g. Photoshop, ClipStudio, SAI)

    Please send the full log file and CMO3 file from this upload site.
    Only staff can receive it.
    https://biz.datadeliver.net/posts/OwM10UCofQAM

    Please refer to this page for information on how to obtain log files.
    https://help.live2d.com/en/other/other_22/

    Best regards.
  • Hello! ty for the reply,
    below are the specs
    Live2D Software Version: Cubism Editor 5.0.00
    - OS & Version: Windows 11
    - PC Model: Custom build
    - Graphics Specifications: NVIDIA GeForce RTX 4070 TI
    - CPU: Intel Core 13th Gen i9-13900k
    - Memory: 32GB
    - Illustration Software used: Clip Studio

    ill upload my files to that link!
    thank you
  • I am unable to get the file below 2.4GB can I send a google drive file to it?
  • @Lukotsu

    Google Drive is also fine.
    We recommend that you send a text containing the Google Drive URL from the upload site mentioned above.

    However, first of all, I am concerned that the size of the CMO3 file is so large that it cannot be sent to the upload site.
    How large is a CMO3 file?
    It is also possible that the file cannot be exported because the file size is too large.
    Try reducing the file size and see if you can export without any problems.
    As a guide, the CMO3 file size of the official sample model "mao" is 42MB. Please try to reference.

    Best regards.
  • submitting the one drive file.
    its 2.4GB but I don't know what else to do to reduce the size except delete layers?
    can you suggest what you recommend after looking at the file?
  • @Lukotsu

    Thank you very much for your reply.
    I have submitted a permission request on Google Drive.

    The reduction in file size is mainly influenced by various factors such as:

    - Size and number of textures
    - Number of objects and parameters
    - Artmesh Number of vertices and polygons
    - Number of deformer divisions
    - Number of clipping masks
    - Number of control points on art path

    Please refer to the official sample model and use the same size as the standard.
    If you want to create a larger, higher quality model,
    Please understand that performance will decrease accordingly.

    Best regards.
  • Just gave permission on the shared link!
  • @Lukotsu

    Thank you for sharing.
    I was able to check your file.

    It seems like your model file is overall too large.
    Please check the "Model Statistics" and compare it with the official sample model to reduce weight.
    https://docs.live2d.com/en/cubism-editor-manual/file-menu/#:~:text=” for details.-,Model Statistics,-Display the model

    It seems that the problem is not limited to a specific part, so I cannot give specific advice such as fixing only a specific part.

    If you still have problems exporting even after reducing the size of your file,
    Please contact us regarding this topic.

    Thank you.
  • To those who have sent only data from this topic:
    Please post in this topic to explain the situation,
    and only submit data if asked by a staff member.
    Sending only data suddenly will hinder subsequent communication.

    I have looked at your model file, and the data size seems too heavy overall.
    Please refer to the sample model and reduce the size to an appropriate size.
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