Sorry, this is a bug that has completely passed me by because I always had the model downloaded. I will make sure that this is fixed for the next alpha version.
Thank you very much for making this post. I'll let you know when the new version drops, should be tonight or tomorrow. :)
The new 0.6.1-alpha.3 version is out and you should be able to download the Spanish - English model with it. Let me know if you have any issues, thank you! :)