Audio player not loading list after iPhone5 7.1 update

I have a 2012 Prius without the Nav package. My iPhone was working fine as a phone and music player. After the IOS 7.1 update that is supposed to fix CarPlay, my phone doesn't work well as an audio player. When I switch to blue tooth instead of giving me a list of music as before it now gives me an empty screen with no browse. I have to load and start the music from my phone and then it works as before. Sort of defeats the "hands free" intent...

Don't know whether this is an apple thing or that I just need an update from Toyota. Does Toyota update their audio/Bluetooth type systems?