Home› Help

If you have any questions, reports, suggestions, or requests about Live2D, please send them to this forum.
※We cannot guarantee statements or answers from Live2D staff. Thank you for your understanding in advance.
 Live2D Cubism
Cubism Products and Downloads
Cubism product manuals and tutorials
Cubism Editor Manual
Cubism Editor Tutorial
Cubism SDK Manual
Cubism SDK Tutorial

[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.

I can't open moc3 or any files on Live2d Viewer.

kzelphyrkzelphyr
in Help
I need to make expressions for my VTUBER model but whenever I open Live2d Viewer and drag a moc3 file in or whatever it asks for, it loads for a bit then disappears? Like, nothing pops up. And I click on "open" or sometimes it'd be "open recent file" but once again, it just loads and then poof, nothing happens or opens up.
Tagged:
· Share on Facebook

Comments

  • Enoko(Staff)Enoko(Staff)
    @kzelphyr

    If some of the files required for importing are missing or renamed, you will not be able to import the files into Cubism Viewer.
    Please try exporting the file again and see if you can import the reexported file into the Viewer.
    Best regards.
    · Share on Facebook
  • vewuvewu
    I have this problem too. I'm trying to import a .moc3 or a model3.json file to the live2d cubism viewer but nothing happens. it only says set " ... setup viewer" and it just disappears and nothing happens afterwards.
    · Share on Facebook
  • Enoko(Staff)Enoko(Staff)
    Hello @vewu

    Please update your graphics board driver to the latest version.
    Does the problem improve?

    In addition, Cubism Editor and Viewer are supported only on computers that meet the following operating environment requirements.
    https://www.live2d.com/en/#cubismspec
    · Share on Facebook
Sign In or Register to comment.