Audio works fine except for proximity chat

Hello, I'm a player on Steam and, while at first everything worked smoothly, it's been at least a week since I cannot hear anyone with proximity chat: after checking on the Known Issues List, trying what I believe were all the fixes offered and doing some tests with my buddy (for example we checked and it seems like when I talk they can hear me but I cant hear anyone through proximity), it seems like even with the right headphones plugged in the social settings and everything turned on I can hear everything BUT the Voice Chat, which I precedently could.
Maybe it's unrelated but I remember that it started the day after I turned off the noise suppression on Discord (although I'm pretty sure the same day I turned it off I could still hear proximity chat)
Could you please help me? Thanks in advance