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Live2D Cubism
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[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.
Comments
Thank you for your contact.
We apologize for any inconvenience this may cause.
If possible, could you please provide the following?
・Log files
・Error reports to be displayed upon forced termination
・Screen recording showing the problem
【How to get the log file】
Open Cubism Editor, click [Help] in the menu at the top of the screen, and then click [Open Log File] to open the log file and attach it.
If you don't want the data to be public, please send it via DM.
[How to send a direct message]
Click on my name, "kudo(Staff)".
My profile screen will open. Click on [Message] in the top right corner.
The message sending screen opens.
Click on the icon [Attach file] and select the file.
Click [Post Message] to send the message.
(Please compress the file. If the file is too large to be attached, use an upload site or similar)
We appreciate your cooperation
Thank you.
Thank you very much for the movie and other information.
We have checked the files.
Could you please check the following.
Do you use multiple monitors such as pen tablets?
Please disconnect all devices connected to your PC and restart your PC.
After that, could you please close all resident applications such as drivers for pen tabs, etc., and then start Editor?
※Resident applications and the Cubism editor may interfere with each other.
https://docs.live2d.com/cubism-editor-manual/faq/?locale=en_us (Q28)
Is there any change if I start the Editor while offline?
We appreciate your cooperation
Thank you.
I have uninstalled my pen tablet drivers and restarted my Mac but the problems are still the same. Also, no changes when I start the Editor offline.
Thank you for your check.
Please delete the following configuration folder and check the behavior of the Editor.
【Mac】
/Users/[User name]/Library/Live2D/Cubism4_Editor/
Also, could you please restore the mac's standard fonts by referring to the following.
※If you have added fonts, you will need to add them again after checking Editor.
https://help.live2d.com/en/cubismeditor/cubism-editor-ui-texts-are-garbled/
And I have restored my Macs standard fonts, but still no change.
thank you for your try.
Could you please let us know your current status so that we can assess the situation.
1.Is the Editor now able to be started in the usual way?
2.Is the Viewer available without any problem?
(e.g., opening a sample model in the Viewer)
https://www.live2d.com/en/download/sample-data/
3.Does the Editor crash randomly while in use?
4.Is there still a problem with the automatic generation of the four corners not working?
5.How about the latest beta version (Cubism Editor 4.2 beta2)?
https://www.live2d.com/en/download/cubism/
6.I heard that you upgraded macOS before the problem occurred. Do you remember performing any other operations such as installing applications?
We appreciate your cooperation
Thank you.