Hi
Can you recheck that you are indeed using the 32 bit balenaOS for your Pi3? This should be visible in your device dashboard.
The reason why I am asking you to double check is that there’s a known issue with Pi3 running the 64 bit OS
See our troubleshooting guide for more info on that - https://sound.balenalabs.io/docs/support#troubleshooting
If indeed you are using the 32 bit OS, then I’d be happy to take a closer look at your device because this definitely shouldn’t be happening