Sound unable to work on Vent.

[Elphaba]

Greetings!

I used Vent just a couple of days ago, and everything was working just fine. However, today, I stumbled upon a problem - I could not hear what anyone was saying despite their speaker icons being lit, and I could not say anything either as pressing my hotkey yielded no positive results.

Here are a few key points pertaining to my issue:
1. No settings were changed since the last time I used Vent.
2. I could still hear the sounds of people signing in an out, alongside the start up tone.
3. When I went to test the sounds in the voice control panel, my hotkey worked okay and I heard the usual tone of when it is pressed.

What could possibly be the problem?
Thank you so much for your help.