Best answer by Maytal
All categories in the Stats page are limited to the top 50 results. When SoundCloud did not do this in the past, some users could not access the Stats page at all because there was so much information it was crashing before it could load all of the stats.
If you are seeing 'Others' for tracks, cities and countries, and apps and URLs this means these are plays coming outside of the top 50 tracks, countries, and sources. I'd recommend adjusting your time frame to be smaller, or looking directly at a track's stats page if you are interested in seeing more specific stats about a certain track or time.
Additionally, outside of having more than fifty logged in users, there are two other reasons why you may be seeing 'Others' underneath your listeners on the new Stats. Others can count towards anonymous plays, or users who are using Stealth Mode on their account.