@Vivi Wu
I have removed the ViveSR SDK completely and installed from VIVE Wave OpenXR Plugin - Windows from package manager and imported facial tracking example.
When I ran the example, nothing moved at all (by the way, the way the example setup is really not intuitive), so it didn't run out of the box.
I tried adding Eye_Framework script and checking 'Enable Eye', but I got this null exception.
[url=https://ibb.co/6ZCJ0Pn][img]https://i.ibb.co/RSw4T0v/image.png[/img][/url]
I have tried uninstalling and reinstalling the whole vive software and made sure that SRanipal is running and I tried VCC which ran fine and the eye tracking worked on it, so SRanipal and the service seem to be working correclty.