I just did a quick scan of the Linn release notes and manuals for various products of theirs and they do indeed seem to use Mono for some of their cross platform software. So it probably is worth investigating this. On one of their products, they specifically mention a Mono conflict with a third party app resulting in their launch icon bouncing then disappearing and the app going no further. Sound familiar?

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).