About the support for Mac models
Cubism Editor is not supported with Apple M1 processors.
Please refer to System Requirements
We will not respond to any related inquiries with this message.
I created a Unreal Plugin that wraps the Native SDK, and integrates most of the Cubism Framework into Unreal Engine. If anyone is interested in using it, I would appreciate some feedback as well to improve it even further.
With the plugin you can import Live2D models and play motions. Expressions are currently still a work in progress.
It can be found here: https://github.com/stkrwork/UE-Live2D