Me and my brother use the same computer with different users, and my brother started playing R6, but the matchreplay files are being saved in the same folder, so in my account I can see his replays and he can see mine, I don't have a big problem with that, but if I want to see my replays the next day and if he plays the game, my replays won't be there, it would be his replays.
It might be hard to fix, I don't know, I just want to share this information.