Oakley Vanguard glasses: power-down chime missing after update

Hi Meta team, could you please look into the Oakley Vanguard glasses power-down chime? It's disappeared again after a recent update — this is the third time it's gone after being brought back. I fully power my headset down every time rather than using sleep, and the chime is how I confirm it's actually off. I'd really appreciate it being restored, and hopefully kept in place through future updates. Thanks!