Hello, we are using Vmix for cybersport tournaments.
We running software on Obsidian configuration.
We use Vmix Call for the remote commentators (ussually 2 people), so they may see the actual game and we get the voice back.

Few last times during the stream I was experiencing problems with Vmix call.
The latency of call increasing with the time up to 400-700 ms, it happens for 10-20 minutes of air. Than the audio becomes unstable with the artifacts.
After this ussually the disconnection error appears on screen.

Also You may check recorded video below.
video

As the sound interface I am using the Zoom L-12 mixing panel, ASIO 2.0 drivers, audio mixed via Vmix. Driver latency is 1024 samples.
The CPU usage is below 70%, GPU is under 60%.
We utilizing wired high speed Ethernet connection. So it seems its not a TCP congestion problem.

Looking forward for tips how to fix it.

BR
Cyril Mamai