Cannot stream through BubbleUPnP Server


I am trying to stream audio to a Chromecast Audio throug BubbleUpNP server.
BubbleUPnP recognizes the Chromecast Audio and “converts” it to a DLNA media renderer. SWYH sees this DLNA media renderer, I can select it, but nothing comes to the Chromecast/speakers. Sound volume is UP and not muted.
I can confirm this setup works, bacause I am able to stream music to the Chromecast through BubbleUPnP from Foobar2000 audio player. But I wanted to capture every sound output from the PC, not just the audio player.