I can confirm this issue exists in UE5 5.0.3 as well, when in editor and a viewport is active, a hiss/static noise is generated in the background. It’s quite concerning… I am using an external firewire interface and I can notice the noise seems to not pass through the windows mixer. If muting UE5 or the entire intrerface from windows mixer, the noise still persists if there is an active viewport running realtime which is odd.
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