Could you please let me know the following details:
I know it sounds simple, but does restarting your device help? Does the same thing happen on a different internet connection, or does re-starting your router help out? Do you have a screenshot of how the app looks when it's frozen? Does this happen with all songs/playlists or just a specific song on the app?
Restarting my computer (or quitting and restarting the app) only helps until the next time it freezes.
I'm on a corporate network, so restarting the router isn't really an option. I have noticed on both the corporate wifi and on the wired LAN connection.
I've attached a screenshot. Everything part of UI is frozen and doesn't respond to clicks. The now playing is out of date because the music is still playing. The min/max/quit buttons on the title bar are the only things that respond to mouse-over or click actions.
The freezing happens regardless of what is playing. Mostly I'm listening to artist or playlist radio stations, but I've experienced this problem with other songs and playlists too.