Windows dessktop app cannot play any songs

[dave400]

Windows desktop app is no longer able to play any songs. Web player is ok, and if i set an external device as the play target in the desktop app those play as well. but any attempt to play on the local machine fails.

I've uninstalled ms store versio and reinstalled from the website, no joy.
i uninstalled, removed any trace of folders left within appdata, shut down, rebooted, reinstalled and no joy.
hosts has no references of any sort that could impact the client app.
at a loss of what i should try next