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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.

ERROR-java.lang_.OutOfMemoryError in the log, and exports leave folder empty

Cubism Version: 5.3.03
OS & Version: Windows11 64 bit
PC model: GIGABYTE GeForce RTX 5070 EAGLE OC ICE SFF 12G Graphics Card
graphic board model number: NVIDIA GeForce RTX 5070 (12 GB)
memory capacity: 32GB
llustration software: Multiple Procreate files merged into Photoshop PSDs
CPU model number: AMD Ryzen 9 9900X 12-Core Processor (4.40 GHz)

I've already deleted unused PSD files etc., shrunk down the texture atlas to 1024 x 1024 to test it, increased max memory allocated to 31GB, set the canvas size to 6250 x 2500 (which is smaller than other models' canvases I've used that worked) and resized the model to as small as a resize factor of 10, yet my .mo3 file always fails to export leaving the target folder blank. It spikes the memory all the way above 31000MB. I was able to save the file, it just doesn't allow me to export it. I'm really proud of my model and all the work I've put into it, and I would be devastated if I cannot use it. All help is appreciated.

Comments

  • Live2D automatically allocates the maximum amount of memory, the texture atlas is not a big factor on the final ram usage, when it spikes a lot is when you have too many psd's, it reaches 31 gb and stops because it just runs out of memory... there is nothing else you can do more than try to reduce the amount of psd's you are using in your model (because on the final render it open all the psd's at once, and if you have too many of them it spikes in ram usage)
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