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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
The possibility to edit a normal parameter to a blend shape, and the other way around. in Feature requests
KatomonKatomon
1
53
ookubo(staff) ookubo(staff)
Live2d maxing out 32GB RAM and freezing constantly. in Help
ChoccoWafflesChoccoWaffles
1
253
ookubo(staff) ookubo(staff)
Feature Request: Multiple Keys Editing for Form Pasting in Feature requests
Tea_conTea_con
1
43
ookubo(staff) ookubo(staff)
CMO3 Files Not Opening in Help
PlayerCalciumPlayerCalcium
3
167
Enoko(Staff)Enoko(Staff)
Exporting bar runs for a little while then closes on it's own without exporting the model in Help
FUAFUA
1
46
ookubo(staff) ookubo(staff)
Parameters Keep Snapping to 0 in animation mode in Help
xStariixxStariix
1
62
ookubo(staff) ookubo(staff)
[Download]Cubism SDK for Unreal Engine R1 alpha4 in Download
Closed
Tak.W(Staff)Tak.W(Staff)
0
342
Tak.W(Staff)Tak.W(Staff)
warp deformer, rotation and automesh buttons not responding in Help
protokittiprotokitti
2
193
ookubo(staff) ookubo(staff)
Having problems when exporting .moc3 in Help
ShiroYamiShiroYami
10
3K
ookubo(staff) ookubo(staff)
Is this bug?? in Help
sm111111sm111111
1
33
ookubo(staff) ookubo(staff)
Disable Default live2d head sway motion in web SDK in Help
NishalNishal
4
169
NishalNishal
How can I load motions and play them at runtime in Unity? in Help
Answered
AkagawaTsurunakiAkagawaTsurunaki
1
184
AkagawaTsurunakiAkagawaTsurunaki
Warp deformer moves strangely. in Help
sm111111sm111111
1
94
ookubo(staff) ookubo(staff)
Live2d disappeared in Help
Depresso_duckDepresso_duck
2
311
ookubo(staff) ookubo(staff)
Seeking Android ARM v7 Library - Need Older SDK Version in Help
huhu214huhu214
0
72
huhu214huhu214
How to fix brow disappearing when activating model? in Help
Answered
COMP28_002COMP28_002
1
64
ookubo(staff) ookubo(staff)
Can't export my model in Help
EiKishikaiEiKishikai
8
544
ookubo(staff) ookubo(staff)
Is/Can there a way to access expression property Names/IDs from the AE plugin in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
CrunchyCrunchy
1
42
ookubo(staff) ookubo(staff)
I can't export model file .moc3 in Help
Answered
SenSen
1
104
obsidianobsidian
live2d doesn't export .moc3 file in Help
ryaaryaa
2
122
LiiuxingLiiuxing
Clipping Mask Groups in Feature requests
LMoLMo
6
1.6K
Enoko(Staff)Enoko(Staff)
Severe UI lag on Mac in Help
LMoLMo
2
135
obsidianobsidian
ERROR "Your order has not been completed Credit card information is not appropriate." in Help
WinWin
1
526
ookubo(staff) ookubo(staff)
Hey is there a support email for the devs cause I wanted to ask something and need to show a video in Help
ItsactuallyTeaDItsactuallyTeaD
1
41
ookubo(staff) ookubo(staff)
Commandline Tool for Exporting models in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
Answered
TheMasterofBlubbTheMasterofBlubb
1
54
ookubo(staff) ookubo(staff)
5.0 beta UI Upscale causes sever fps drop from high res monitors in physics window in Help
indigo_choindigo_cho
18
1.6K
LMoLMo
Worse performance on 5.0 compared to 4.2 in Help
KetKet
8
1.1K
LMoLMo
I reset my windows before deactivating the license in Help
Answered
Cool_BatCool_Bat
3
75
ookubo(staff) ookubo(staff)
[Download]Cubism SDK for Unreal Engine R1 alpha3 in Download
Closed
Tak.W(Staff)Tak.W(Staff)
0
164
Tak.W(Staff)Tak.W(Staff)
Cannot dowoload newest version in Help
Answered ✓
KamiletKamilet
1
24
ookubo(staff) ookubo(staff)