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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
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Most Recent
Editor lags when I open OBS? in Help
graveyardfoxgraveyardfox
0
14
graveyardfoxgraveyardfox
Error: Failed to output - failed to change a file name in Help
aricalamariaricalamari
0
143
aricalamariaricalamari
Bank Card? in Help
Visci_VasayVisci_Vasay
3
155
obsidianobsidian
Layer got too big and out of project workspace. in Help
VrisiaVrisia
5
372
VrisiaVrisia
Program freezes when exporting as .moc3 file. Texture atlas window not prompting. in Help
Answered
picklepickle
2
329
Enoko(Staff)Enoko(Staff)
What looks different on the edit screen, physical connection, and blend settings. in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
Answered
peporilpeporil
2
123
obsidianobsidian
Live2D 5.0 alpha won't open in Help
Marzia_EvansMarzia_Evans
6
839
Enoko(Staff)Enoko(Staff)
No highlight when selecting something from the view parameter or deformer in Help
Answered
kashukashu
2
147
NomadicNomadic
LookController & UI in Help
Question
no5187no5187
0
79
no5187no5187
Moved: LookController & UI in Help
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
Very Strange Colour Shift in Exported Movie in Help
skycompassskycompass
2
590
skycompassskycompass
OpenGL Initalization Failed in Help
MitchuoMitchuo
24
5.4K
arhguarhgu
Skinning parameters set but missing from palette in Help
KwiinaKwiina
1
134
KwiinaKwiina
Animation Transition (Blend) in Help
Answered ✓
no5187no5187
1
240
yasu.o@live2dyasu.o@live2d
Moved: Animation Transition (Blend) in Help
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
Live2D won't open in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
anhuaanhua
3
605
Enoko(Staff)Enoko(Staff)
Frame drops in Unity in Help
SergSSergS
1
156
yasu.o@live2dyasu.o@live2d
Panty&Demons chain match3 with live2d workshop integration in Projects, Showcase & Critiques
MacKotMacKot
0
186
MacKotMacKot
I keep getting this "Sorry, an error occurred at startup. Please contact Customer Support." Pop up in Help
Answered
KanakoKanako
9
712
Enoko(Staff)Enoko(Staff)
.moc3 file refuses to export in Help
JJDESPAIRJJDESPAIR
1
41
Enoko(Staff)Enoko(Staff)
Is it possible to program a model on a certain phrase so it animates automatically? in Help
Question
ParararapamParararapam
0
34
ParararapamParararapam
Add Opacity for Parts folder in Feature requests
Ran_THRan_TH
0
54
Ran_THRan_TH
Moved: Can't save model file, "Requested Array Size Exceeds VM limit" in Help
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
Can't save model file, "Requested Array Size Exceeds VM limit" in Help
QmoriQmori
1
112
QmoriQmori
Please help fix the error.. in Help
Answered
handaronghandarong
1
228
Enoko(Staff)Enoko(Staff)
Please help me fix the error.. in Help
Question
handaronghandarong
0
79
handaronghandarong
Every time I try to export my animation with a transparent background, I get some kind of antilasing in Help
missnamismissnamis
0
52
missnamismissnamis
Unable to load.. in Help
KumaAkkariKumaAkkari
1
553
obsidianobsidian
Every time I try to export my animation with a transparent background, I get some kind of "saw teeth in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
missnamismissnamis
13
1.3K
missnamismissnamis
missing parameter keyframes in export in Help
vtcwatvtcwat
1
153
Enoko(Staff)Enoko(Staff)