[SOLVED] Spotify connect stopped playing audio

[new_bloke]

I can confirm that compiling the librespot executable from the dev branch of the code (at commit 2ea7436) resolves the issue for me. I also discovered that older versions of the Spotify client (for me on Mac) seemed to cause a different authentication error. This probably explains why the Spotify community support folks are asking if the affected TVs are due a firmware update...

In addition to the dev build did u also have to set $ap_port = '' in /var/www/inc/renderer.php?

I didn't, although I'm running an old build of Moode currently. I see other issues, such as the Spotify active overlay not displaying, and the volume control being different, likely caused by the different way the dev version handles player events...
I'm happy to try on the latest version of Moode and report back, if that's helpful...