We posted up a new build in the BETAS tab under Properties, labeled "next_update". It fixes a few more bugs with coop and other random problems users have reported, as well as language support for Spanish, German, Japanese, Italian, and French among others!
Please try it out, and let us know if it breaks anything for you. We'll push it live if it's all good.
Hyper Light Drifter NEWS - on Steam Community