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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
HELP Live2D won't open any file in Help
SariphySariphy
7
439
ookubo(staff) ookubo(staff)
ArtMesh line thickness is not changed in MacOS in Help
Ran_THRan_TH
3
64
ookubo(staff) ookubo(staff)
I have a question about CubismWebFramework in Help
skaska
1
55
nakayasui(staff)nakayasui(staff)
The validity of the license cannot be confirmed due to incorrect system time. (1 ,-40) in Help
craigthechickencraigthechicken
1
144
ookubo(staff) ookubo(staff)
Artmesh not Snapping to layer when imported in Help
Answered
HagitaHagita
2
87
HagitaHagita
Urgent! Need help with export runtime in Help
GwenArtGwenArt
1
46
ookubo(staff) ookubo(staff)
[Unity] Problems About Motion Priority & Fade in Help
Answered ✓
kiraiokiraio
9
428
kiraiokiraio
I can't export motion file in animation panel, nothing happens in Help
Answered
Evn_ESKEvn_ESK
2
82
ookubo(staff) ookubo(staff)
Does anyone know how to solve this error? in Help
Answered
VanilaVanila
1
62
ookubo(staff) ookubo(staff)
In the animator is it possible to go full screen like when you can’t see the timeline? in Help
ItsactuallyTeaDItsactuallyTeaD
1
41
ookubo(staff) ookubo(staff)
5.2.00 beta1 - Multiple form pasting won't work if the project file was created in an earlier ver. in Help
Tea_conTea_con
6
301
Enoko(Staff)Enoko(Staff)
Opening translation language files (To support other languages) in Feature requests
JekSun97JekSun97
4
134
ookubo(staff) ookubo(staff)
5.2.00 beta1 - Up/Down Eraser size adjustment no longer works in Help
cilliacillia
3
135
Enoko(Staff)Enoko(Staff)
Windows ARM64 version of Live2DCubismCore.dll in Help
ethanleeethanlee
5
268
ethanleeethanlee
Live2D Editor CONSTANTLY Crashes with No Warning in Help
ellumineellumine
1
196
ookubo(staff) ookubo(staff)
Unable to click link parameters when "Show only the paremeters active for selected object" in Help
EstEarth202EstEarth202
1
82
ookubo(staff) ookubo(staff)
Live2D Editor doesn't open. in Help
ann_karaann_kara
2
142
ookubo(staff) ookubo(staff)
Parameter Lock in Feature requests
Fluffy1Fluffy1
1
52
ookubo(staff) ookubo(staff)
Animation looks VERY different once its in Vtube Studio - completely missing layers & extra movement in Help
dandoartdandoart
1
494
KatomonKatomon
can “save as” only one time per 1 time program open in Help
kittiykittiy
1
32
ookubo(staff) ookubo(staff)
Stroke Mesh Mapping Custom Density in Feature requests
KatomonKatomon
1
43
ookubo(staff) ookubo(staff)
help with full body tracking plugin in Help
ItsactuallyTeaDItsactuallyTeaD
0
13
ItsactuallyTeaDItsactuallyTeaD
Renewal Error. Site does not update alternative card details in Help
nananeuenananeue
1
21
ookubo(staff) ookubo(staff)
Recovered File [ERROR] java.util.NoSuchElementException in Help
crazey02crazey02
1
95
ookubo(staff) ookubo(staff)
[5.2 BUG] Error when pasting the form of multiple Warp Deformers & backwards compatibility issue in Help
KuroamaKuroama
6
333
SoultyRagevinSoultyRagevin
Copying Multiple Forms/Deformers Not Working (attempted Blend Form) in Help
IceySkiezIceySkiez
2
104
ookubo(staff) ookubo(staff)
Cubism 5.2: Pasting multiple forms issue in Help
dochanheedochanhee
2
94
ookubo(staff) ookubo(staff)
Can't Export the file to moc3 file in Help
vntxarvntxar
7
286
KatomonKatomon
Exporting error message in Help
elieli
1
96
KatomonKatomon
Any Key frame typing 100 goes to 0, mouse drag infinitely goes to 0. in Help
WindWind
1
11
ookubo(staff) ookubo(staff)