I created an application using Unity, OpenXR, and the XR Interaction Toolkit. The app runs perfectly on the Quest 3. I installed it on my headset through https://developers.meta.com/horizon/ where I created a project and uploaded the APK.
Now here’s where things get strange: when I cast from my Quest 3 to any device, everything works fine, including the audio. However, when casting from another Quest 3—like my teammate’s headset—there’s no audio during casting.
We’re using the same casting site: https://oculus.com/casting . We’ve tried a factory reset on his device, noticed that the casting page starts muted (so we unmuted and increased the volume), and I even tried creating a custom AndroidManifest to force audio casting—but none of it worked.
Casting audio works with other apps on both headsets, and sound plays normally inside the headset itself. The issue only occurs with my application when casting from my teammate’s Quest 3—there’s no audio on the TV, computer, or phone.
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