Yes, when using Global Sync mode, if one person presses play on a Light Show instance, the audio will begin playing on any other computer that has that same Light Show open in the platform. This is because Global Sync is designed to synchronize the experience across all connected devices. While this is the desired behavior for the fan-facing experience, it can cause surprises during development if multiple team members have the same Light Show open while someone is testing. We recommend closing out of Light Show instances when you're not actively working on them to avoid unexpected audio playback, especially if another team member might be running tests at the same time.
