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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
Cannot save my model after hours of work in Help
Answered
zhyzhazhyzha
1
55
ookubo(staff) ookubo(staff)
Can't save because of screen color in Help
REfan0213REfan0213
1
62
ookubo(staff) ookubo(staff)
Unsure how to disable preview animation in parameters. in Help
maymay
1
75
ookubo(staff) ookubo(staff)
Save blendshape settings in parameter list export in Feature requests
Ran_THRan_TH
1
31
ookubo(staff) ookubo(staff)
pro trial not working in Help
seeliebeelieseeliebeelie
1
108
ookubo(staff) ookubo(staff)
Additional Glue Controls in Feature requests
TheArtGunTheArtGun
4
238
ookubo(staff) ookubo(staff)
[BUG] Import bulk settings for parameters fails. in Feature requests
LithmarielLithmariel
4
410
ookubo(staff) ookubo(staff)
license error AE plugin in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
diododiodo
4
388
ookubo(staff) ookubo(staff)
Keyform Optimization in Feature requests
TheArtGunTheArtGun
3
84
ookubo(staff) ookubo(staff)
Unable to open model file (no backups available) in Help
HighRoeL2dHighRoeL2d
0
64
HighRoeL2dHighRoeL2d
space drag in Arrow tool is not work in Help
Answered
imoruimoru
8
266
ookubo(staff) ookubo(staff)
awkward ui spacing (5.1 BETA) in Help
dochanheedochanhee
1
43
ookubo(staff) ookubo(staff)
Unable to save/export project in Help
aluminum_eateraluminum_eater
2
157
ookubo(staff) ookubo(staff)
Re-import Bug in Help
ReleahReleah
1
53
ookubo(staff) ookubo(staff)
Live 2d Sdk Unity Audio mouth Input Webgl - Not Working as in Windows Build. in Help
MaskiMaski
1
66
MaskiMaski
Live2d Cubism 4.0 doesn't open 12 in Help
aztodioaztodio
31
5.4K
obsidianobsidian
Need an older version of Live2D Cubism SDK Core in Help
Unknown0ArtistUnknown0Artist
1
326
obsidianobsidian
Error -2136354232 in Help
SaiyukoShiniSaiyukoShini
1
56
ookubo(staff) ookubo(staff)
CubismSdkForNative-5-r.1 for opengl in linux in Feature Requests
Closed
fancityfancity
1
107
Tak.W(Staff)Tak.W(Staff)
Cubism Editor/ Viewer Startup Graphical Error in Help
MogaarMogaar
1
346
ookubo(staff) ookubo(staff)
Live2d Crashes Constantly - even when idle. in Help
bogattibogatti
1
97
bogattibogatti
Unity SDK reset prefab in git branch change or pull in Help
dacerdacer
3
135
dacerdacer
Better Clipping Masks in Feature requests
MakingThingsMakingThings
4
1.3K
LithmarielLithmariel
Archive and Upload Metal Demo Sample to Testflight in Tips and Tricks
sinahimesinahime
1
216
jamjamesjamjames
New Member Introduction: Excited to Explore Live2D Community! in General Discussions
jamjamesjamjames
4
115
jamjamesjamjames
Hello!! I have encountered a problem: "FREE version - The additional Parameters have exceeded the li in Help
Answered
Sugar685Sugar685
1
51
jamjamesjamjames
model is not exporting in Help
KnowKnow
3
121
obsidianobsidian
Change active keyframe while using temporary deform? in Help
LithmarielLithmariel
0
32
LithmarielLithmariel
cmo3 file not opening in Help
ritsuritsu
1
142
ookubo(staff) ookubo(staff)
Can't Export as MOC3 file in Help
ShiroichigoniShiroichigoni
3
247
Enoko(Staff)Enoko(Staff)