Windows 10 guest hangs upon trying to play sound

jemenake

Bit poster
Host: MacOS 10.14.6 on 2018 MacBook Pro
Parallels: 14.1.3
Guest: Windows 10 Pro (x86) (1903, I believe). Parallels extensions installed.
Problem: As soon as the guest OS tries to play a sound, the guest OS locks up (no mouse or keyboard activity is recognized) and the little blue light under the speaker in the upper-right of the guest OS window (showing audio activity) flashes about 3-4 times per second.
"Soft" events (like "Shutdown", "Restart", "Suspend") do nothing; I have to use "Stop" or "Reset"
Muting the audio in the guest OS prevents it from hanging.
Ideas?
 
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