ChengNan Yang

@ZhouMax95 When you import SteamVR Plugin 2.0 and above, you need to apply VIU action sets. https://github.com/ViveSoftware/ViveInputUtility-Unity/wiki/SteamVR-Input-System-Compatibility Double check the SteamVR Input window whether you can see htc_viu tab.

@ZhouMax95 Could you share that Unity 2018 project to me for investigation? And, could you also try updating VIU to the latest one from GitHub and try again?

> it's work fine in 2018.4 LTS version Which version fail in Unity 2018?

@wakeup5 Which version of VIU are you using? If you are not using GitHub's develop branch, would you mind trying and see if your issue still existed. We did fix...

@wakeup5 Can you try the latest VIU (1.10.4) package? Let us know if this issue still exists. Thanks!

Which scene are you testing on? Any specific steps to follow to duplicate this issue?

In your step 2, could you try using ViveCameraRig prefab instead?

@wirelessdreamer VIU's input will not reflect any signal to Live View. VIU works independently. If you would like to have any actions show signal in Live View, you might need...

Can you provide below information, Which Unity version? Which SteamVR Plugin version? Which VIU version? Which scene did you overcome this issue?

https://github.com/ViveSoftware/ViveInputUtility-Unity/issues/54#issue-363904294 Currently, we are working on this issue.