Audio is not streamed when users are connected to the physical desktop on Arch Linux.
Server logs report:
6693 NXNODE Error while launching '/bin/pactl load-module module-cli-protocol-unix socket=/usr/NX/var/run/nxdevice/D-1001-F9997829F787E07B5D9E246B68D38A05/audio/cli.socket' command.
6693 NXNODE PA_ConnectSocketCli: Cli socket [/usr/NX/var/run/nxdevice/D-1001-F9997829F787E07B5D9E246B68D38A05/audio/cli.socket] does not exist. Skipping connection.
The nxerror.log file shows the following message:
Connection failure: Connection refused
pa_context_connect() failed: Connection refused.