UI works for 30 min then connecting loading screen shows up

Hi, I just installed Volumio on my RPi2/Hifiberry DAC+ setup and it works fine except for the UI going back to the “connecting…” loader screen after 30 minutes. I’ve pulled the latest UI from github and it still happens. I’ve done some digging and what seems to happen is that volumio.api.js makes an ajax request to volumio.local/_player_engine.php?state=stop. The server returns a 404 error after ~30 minutes and the error makes the UI go into the connecting state and it never gets out of this. Is there anything I can do to fix this?