When trying to play and manage favorites on newer Logitech Media Server (LMS) versions, most things seem broken.

Newer LMS versions have a configurable favorites behavior and at this time Orange Squeeze is only compatible with the older-style.

You can configure this by browsing to your LMS web interface -> Settings -> Advanced -> Favorites and choosing “Local music items behaviour” value equal to “Don’t browse items when selected, just play them (old behaviour)”.