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Live2D Cubism
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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
Two Severe Operational Bugs in Cubism in Help
chakunchakun
11
498
Enoko(Staff)Enoko(Staff)
When will macOS metal support be available? in Feature Requests
miku1958miku1958
2
164
Enoko(Staff)Enoko(Staff)
Cannot open Cubism Editor on Mac: application not responding in Help
Answered
br0w0kenbr0w0ken
1
124
obsidianobsidian
Unable to store, unable to export in Help
xxxxxx
4
134
xxxxxx
There are translation errors in the Chinese Simplified text in Help
MouwooMouwoo
2
79
Enoko(Staff)Enoko(Staff)
Anyway to save a corrupted file? in Help
GennyBeeArtGennyBeeArt
1
269
Enoko(Staff)Enoko(Staff)
Font/ UI looks completely different from every screencap I've seen in Help
illinformedGadzooksillinformedGadzooks
1
104
fukui(staff)fukui(staff)
I think i have a momory leak in General Discussions
RumiaRumia
4
540
Enoko(Staff)Enoko(Staff)
License activation failed (1 ,-1010) in Help
DarkisDarkis
1
53
Enoko(Staff)Enoko(Staff)
Already activated license, says unregistered? in Help
jAckdawjAckdaw
1
146
Enoko(Staff)Enoko(Staff)
Activation pro trial error in Help
Happy_DogHappy_Dog
5
1.5K
Enoko(Staff)Enoko(Staff)
License activation failed (1 ,-1010) in Help
ZatoTechnoirZatoTechnoir
3
235
Enoko(Staff)Enoko(Staff)
License activation failed in Help
Y0K0B0XY0K0B0X
1
513
Enoko(Staff)Enoko(Staff)
Contact not working on Live2D site? in Help
Answered
hiinamaruhiinamaru
12
478
lightelflightelf
Rotation, Scale in Multiple Keys Editing in Feature requests
ColinHarvieColinHarvie
0
53
ColinHarvieColinHarvie
i found answer to my question, i am very sorry in Help
yuyokoyuyoko
0
16
yuyokoyuyoko
Moved: When will macOS metal support be available? in Feature Requests
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
Pop up message won't go away in Help
jAckdawjAckdaw
1
1.5K
Enoko(Staff)Enoko(Staff)
Parameters Keep Snapping to 0 in animation mode in Help
xStariixxStariix
1
296
Enoko(Staff)Enoko(Staff)
Live2D 5.0.02 won't open in Help
Answered
honeybunhoneybun
1
275
ueno(staff)ueno(staff)
[Native SDK] I got a runtime error "Buffer Validation Cannot create buffer of zero length." in Help
Answered
fullc0defullc0de
2
213
Enoko(Staff)Enoko(Staff)
Ability to use PRO version when offline for a few days in Feature requests
ARSARS
1
226
fukui(staff)fukui(staff)
[BUG] Live2D 5.0 offline expiration does not work. in Help
Ran_THRan_TH
1
202
fukui(staff)fukui(staff)
Selected parameter not visible in light mode (Bug) in Feature requests
TheArtGunTheArtGun
1
83
fukui(staff)fukui(staff)
Live 2d animation issue in Help
lydde_1lydde_1
3
511
fukui(staff)fukui(staff)
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
836
honeybunhoneybun
[BUG] Folding line at first deformation point will lock the path in Help
Ran_THRan_TH
5
267
Enoko(Staff)Enoko(Staff)
Blend Shape Weights Duplicate Parameter Values Error in Help
ColinHarvieColinHarvie
3
165
Enoko(Staff)Enoko(Staff)
Replicate Parameter should also change parameter name in Feature requests
cilliacillia
4
295
Enoko(Staff)Enoko(Staff)