If you watch Murder Drones in English, Doll speaks Russian, as we all know (I think, also she speaks English in the Russian version but that's not the point). However, if you watch with English subtitles, it'll just say [Speaking Russian]. This could be for one of two reasons:
1. There are pre-existing subtitles for Doll's dialogue made by Glitch as part of the animation
2. The people who did the subtitles only listened to the audio and didn't see the actual animation
I think it might be the latter, because there are a number of other examples of this very thing elsewhere in Murder Drones.