[Regarding macOS Tahoe](Updated September 18, 2025)
We cannot guarantee the compatibility of the current releases of Live2D Cubism Editor and Cubism SDK with macOS Tahoe.
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.
I downloaded the latest version today and it won't open. Please help

- Live2D Software Version: Cubism Editor 4.0.05
- OS & Version: Windows 8,1
- PC Model: Asus
- Graphics Specifications: NVIDIA GeForce 820M
- Memory: 8Gb
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Comments
Is your computer 32-bit or 64-bit?
The Cubism Editor is only compatible with 64 bit versions of computers.
https://www.live2d.com/en/#cubismspec
Thank you for the reply.
Uninstall Cubism Editor and then install it again.
Can you fix the problem?