Board Thread:General Discussion/@comment-25266931-20170126040344/@comment-10380701-20170206062636

It's a justified inconsistency. On one hand, re-rigging Ruby's old model from Poser to Maya is probably not worth it just for a few seconds of usage, so they likely let the animators save shitloads of time and just used present day Ruby's model. The point of the scene came across anyways.

In another, it might only be from the viewpoint of the audience. So from Cinder's viewpoint, it's V1-3 Ruby.