Freshly loaded up Destiny 2 to play strikes. ALL sound was working prior to loading into the Insight Terminus strike using the Vanguard Ops playlist. After getting on my Xurfboard, I noticed I had no boost sound effect, and no dialogue was playing through my headphones. I opened my game settings to make sure no sound options were turned off, or inaudible, and all settings were at max. I then checked my headphones to make sure they were turned on and they were. About halfway through the entrance, I turned on Nvidia's "Instant Replay" option to see if it would capture what I was experiencing, it did. The ONLY thing I was able to hear was whenever I opened my inventory or whenever I hit escape and it played the SFX for opening said menus. Edit: After I encountered this issue, I loaded into the Exodus Black Landing Zone on Nessus to see if this issue was still present. Upon landing, the issue had seemingly resolved itself. Is bug repeatable?: Likely. I have seen many others have an issue similar to this.