"they both sleep in the room" and "they are both sleeping in the room" are both acceptable answers. Is there a common way of saying each of these sentences that would distinguish them from each other? The first makes no indication of when, only that it is an act they both perform (and maybe not at the same time). The second says they are both doing it right now.
In the past 11 months, a new system has been rolled out where the course volunteers can record their own sound. Before that, they were dependent on Duolingo to roll out the sound for them. There was a long period where the Esperanto course volunteers simply had no way to add new sound to new sentences or correct sentences with problems in the sound recording.