UR44C Noisy when using internet music apps

Noise with both headphones and Main Outs.

Initial connect is clean and stable and degrades in minutes to noisy and unstable.

When using, seemingly random degradation. symptoms are noises and rapidly modulating waveform sounds introduced. Often disconnection from the app (app reports that device is not connected.

Apps include: Solocontutti, Jamulus, JamKazam.