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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
Pinch & Bulge Brush tool in Feature requests
ColinHarvieColinHarvie
2
122
Enoko(Staff)Enoko(Staff)
Liquify? in Feature requests
anzeloanzelo
2
191
Enoko(Staff)Enoko(Staff)
Can't make rotations deformers in Bug
ZyberZyber
1
71
ookubo(staff) ookubo(staff)
Errors descriptions in logs in Feature requests
CAMACAMA
2
83
ookubo(staff) ookubo(staff)
The -105 error cannot be resolved. in Help
rechrech
1
21
ookubo(staff) ookubo(staff)
rotation deformer not working in Help
meowmeow123meowmeow123
2
172
meowmeow123meowmeow123
Beta 5.3 bug? in Help
CAMACAMA
1
91
ookubo(staff) ookubo(staff)
[BUG BETA - 5.3.00] - Color blend problems on layers in Help
Answered
NifrendielNifrendiel
2
153
ookubo(staff) ookubo(staff)
[Help] [Cubism 5.3.00beta1] .cmo3 file won’t open, nothing shows after loading. in Help
mochimochibbmochimochibb
3
151
obsidianobsidian
2 normal parameters with 1-3 Blendshapes "keyframe", in Cubism Editor free version in Feature requests
EstEarth202EstEarth202
2
162
EstEarth202EstEarth202
5, -1005 Error on my old account in Help
seleneveeayeseleneveeaye
3
41
Enoko(Staff)Enoko(Staff)
Feature Request: Extend BlendShape Weight Range to -100% in Feature requests
Tea_conTea_con
1
51
ookubo(staff) ookubo(staff)
Fail to export model to moc3 file in Help
Answered
GagaliliGagalili
3
202
KatomonKatomon
I can't export to moc3 file in Help
Answered
Teddy_TurleTeddy_Turle
5
162
KatomonKatomon
Crash on startup with EXCEPTION_ACCESS_VIOLATION in OpenCL.dll - Unable to run Live2D Cubism in Help
j955229j955229
5
201
ookubo(staff) ookubo(staff)
Got a new PC: Now Live2d Freezes up my whole PC in Help
Answered
LumeliaLumelia
2
101
LumeliaLumelia
Out of memory, the .bat doesn't work in Help
Papercut40Papercut40
2
81
KatomonKatomon
My live2d can't be opened in Help
Answered
Kagaii05Kagaii05
1
133
ookubo(staff) ookubo(staff)
unable to purchase the license in Bug
theegusttheegust
1
171
ookubo(staff) ookubo(staff)
Payment issues purchasing annual license in Help
itssweetandyummmmmitssweetandyummmmm
4
673
ookubo(staff) ookubo(staff)
YEN to PHP wasn't applied? in Help
mimiqmimiq
1
62
ookubo(staff) ookubo(staff)
Severe lag in big projects in the editor in Help
HitomiHoshinoHitomiHoshino
3
384
KatomonKatomon
Simplified abstraction layers for Web SDK in Feature Requests
Ran_THRan_TH
1
41
nakayasui(staff)nakayasui(staff)
Add ability to align temporary deform tool when align the bounding box. in Feature requests
EstEarth202EstEarth202
1
81
ookubo(staff) ookubo(staff)
Add "Lock Default Form" as button in palette in Feature requests
Ran_THRan_TH
1
61
ookubo(staff) ookubo(staff)
I have an error message in the logs I can't decipher and the model won't export in Help
PhoenixatherPhoenixather
2
182
PhoenixatherPhoenixather
Automesh bugs - please help! in Help
niftysawusniftysawus
3
182
KatomonKatomon
My Past Discussion Disappearred in Help
jimmykumajimmykuma
4
91
jimmykumajimmykuma
1
Up
Announcement regarding Cubism Editor 5.3 in Reporting bugs about new features/Feedback
Active
Tak.W(Staff)Tak.W(Staff)
1
311
namgaunnamgaun
Reflect motion is not avaliable in the updated Live2D (Live2D 5.2.03) in Help
REfan0213REfan0213
3
1.1K
ookubo(staff) ookubo(staff)