Is Anyone Else Suddenly Having This Streaming Audio Issue? (Example Included)

[x9xkx]

Video/audio clip of the problem here
I livestream to Mixcloud and this was never a problem for me until about two weeks ago. There is a white noise sound, a weird reverb begins after 5-10 seconds, and then the sound fades out completely. My streaming settings:

• 3000 Kbps
• Audio bitrate: 160
• Video Encoder: Hardware (NVENC, H.264)
• Encoder Preset: P6 Audio encoder: AAC (Default)

I'm pulling from my desktop audio (which I've always done), and I checked all of my sound inputs/outputs. My computer mic is off, and I'm online via ethernet. I haven't changed anything in terms of settings or software, so I'm very confused. Any help would be greatly appreciated.