audio is lost after radio switching

I re-post that after a while when I switch from a radio to another radio, playback is mute even if volume control is high.
This morning I started volumio, I could switch three radios, then I played till early afternoon, then I tried to switch to different radios but I lost volume, and I had to restart Volumio. What is wrong??

logs.volumio.org/volumio/xAKJuXi.html for the relevant log

I have the same problem. It suddenly started with an old release (3.2 something). I updated to the last one but the bug is still here. It seems happen only switching between radios, no troubles with the files in a usb pen. Thanks!