Stereo Tool

Hi guys,

I see a weird thing happening at a studio:
Stereotoo shows a modal dialog:
Title: Sound card error
Content: Streaming output: Stream has stopped.

The stream is indeed dead (icecast server shows no incoming connection), but ST believes to have an active icecast connection.
µMPX and normal output playing fine.

Re-enabling stream output resumes the icecast stream. This has happened a couple of times now, all at the same site, not at other sites with similar setup.

Stereotool is 10.10, Soundcard a Marian don't know exactly, Windows 10 LTSC.

Any ideas to mend this?