No sound in game for second user

[Freakz]

Hey, I have a quick question about my problem with no sound for second user while hes in the same game as first user.
I am using 2 - users workplace and while both players are playing same game - Dota 2 (steam game), although having two different headsets, each assigned to one workplace in the app, one of them is not getting any sound input or output in the game with correct input/output device selected, other peripherals work as they should, the second user has perfect audio input/output from his game. When both users are running different games, audio is perfect on both sides.
Has anyone had the same problem or has an idea for solution?
Thanks a lot, Freakz

[beast2040]

Check the sound settings in the game. Perhaps the playback device is incorrectly selected there.