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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>
Texture Atlas stop while I'm saving.
When I was saving my Live2D Texture. I can press OK button, but it will stop immediately. How can I solve this problem? Sorry I'm not good at English.
This might be the error code in Log.

And here is my screencast.
https://www.youtube.com/watch?v=T7yTsW3Z0os
0 ·
Comments
▼ For question regarding Editor, please provide:
- Live2D Software Version: (e.g. Cubism Editor 4.0.01)
- 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)
If the PSD is not created according to the rules, problems will occur when importing or creating textures.
Please check the manual here.
Use CLIP STUDIO PAINT or Photoshop as a drawing application.
Other drawing applications are not supported.
https://docs.live2d.com/cubism-editor-manual/divide-the-material/?locale=en_us
https://docs.live2d.com/cubism-editor-manual/precautions-for-psd-data/?locale=en_us