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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.
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 email form.

Recent Discussions

Discussion List

Discussion
Started By
Replies
Views
Most Recent
moc3 file refuses to export in Help
ItsDaDocItsDaDoc
3
1.1K
Enoko(Staff)Enoko(Staff)
Live2d Cubism Editor 5.0 doesn't open in Help
LunaLuna
3
850
honeybunhoneybun
[BUG] Folding line at first deformation point will lock the path in Help
Ran_THRan_TH
5
288
Enoko(Staff)Enoko(Staff)
Blend Shape Weights Duplicate Parameter Values Error in Help
ColinHarvieColinHarvie
3
174
Enoko(Staff)Enoko(Staff)
Replicate Parameter should also change parameter name in Feature requests
cilliacillia
4
309
Enoko(Staff)Enoko(Staff)
Return more detailed logging in the Log panel in Feature requests
Ran_THRan_TH
3
132
Enoko(Staff)Enoko(Staff)
Does Cubism render 0% items, calculate their physics? in Help
NekoHerderNekoHerder
2
135
Enoko(Staff)Enoko(Staff)
[SDK] I got an error message like that "Buffer Validation Cannot create buffer of zero length." in Help
Question
fullc0defullc0de
0
115
fullc0defullc0de
[BUG] Problems whenever a reload the Unity editor in Help
NaggiNaggi
3
253
NaggiNaggi
RAM Usage keep Increasing in General Discussions
kopikopikopikopi
9
3.2K
RumiaRumia
can't export moc3 file in Help
Answered ✓
MatteoMatteo
2
377
Enoko(Staff)Enoko(Staff)
What is that weird trail? and How do I fix it? (This is my first time using live 2d) in Help
Answered
SproutSprout
3
298
NaggiNaggi
Why is my ‘export as a moc3 file’ greyed out? in Help
Answered
live2dgirl2023live2dgirl2023
1
291
NaggiNaggi
Motion tweening between two static keyframes? in Help
Answered
IndraDevIndraDev
2
103
NaggiNaggi
Is there a way to use warp deformer not only to folder but to each object in the folder? in Help
Answered
DziGrobZoroDziGrobZoro
1
147
NaggiNaggi
Rigging the mouth where it changes based on where the head is facing. in Help
RedStorm916RedStorm916
1
206
NaggiNaggi
openGL error in Help
yobebeyobebe
1
125
Enoko(Staff)Enoko(Staff)
Capturing an image of the Vtuber model using Cubism DIY Viewer in Unity in Help
Fernando96Fernando96
1
209
obsidianobsidian
Lock Deformer button causes performance changes in Help
cilliacillia
7
299
Enoko(Staff)Enoko(Staff)
Corrupt/incomplete exports when working on initial launch of software in Help
indigo_choindigo_cho
4
263
Enoko(Staff)Enoko(Staff)
Possible to convert moc3 file back to cmo3 file? in Help
zackartzackart
1
3K
obsidianobsidian
Editor 5.0 Application isn't responding to Mac M1 Chip in Help
Answered
iuhneedahelpuh1iuhneedahelpuh1
1
358
fukui(staff)fukui(staff)
安裝完點開沒回應 in Help
李英傑李英傑
1
190
Enoko(Staff)Enoko(Staff)
Please fix your download site in Help
Ran_THRan_TH
2
315
Enoko(Staff)Enoko(Staff)
Help, Live2D won't overwrite exported .moc3 file in Help
YabiVTYabiVT
14
851
ueno(staff)ueno(staff)
Live2d Cubism Editor 5.0 Failed to initialize OpenGL in Help
MHRMHR
3
604
obsidianobsidian
RAM Capping at 2G in Help
NamiAthenaNamiAthena
1
826
Enoko(Staff)Enoko(Staff)
can't export moc3 file in version 5.0 in Help
yeenyeen
2
195
yeenyeen
Unable To Change Lock Screen Timeout in General Discussions
Answered
Tonyhaler1Tonyhaler1
3
97
obsidianobsidian
Creating a separate branch for the Renpу engine in Feature Requests
HarakiryHarakiry
1
235
Tak.W(Staff)Tak.W(Staff)