Still working for me, can you share an example project with the issue you see?
Viewing post in Construct 3 3DObject Plugin - SDK V1 only comments
Sure, https://drive.google.com/file/d/1xXjeDyfm73Fdy21pSnBkzPzg4xeWzxDe/view?usp=drive...
This model loads on 440-2, and throws up that error and doesn't show on newer versions.