Hey there anok1023!
I understand you're having issues with the Eye Gaze building block. Since you mentioned you're using Airlink, have you tried connecting with PCVR via cable link? That would be my first suggestion as a troubleshooting step, especially if it's a timing issue.
That said, you could also try adding a slight delay after startup before calling OVRPlugin.GetEyeGazesState(). That might be able to tell you if it's a subsystem initialization timing issue or not. Lastly, I would just make sure you're using the latest version of the OVRPlugin and Unity OpenXR Plugin to avoid any version mismatch issues.
I can link some of our documentation below that should be helpful to you. Hopefully you found some of this helpful, and if not, please feel free to let me know and we can investigate further!
XR Plugin Management for Meta Quest
-G
