Unreal Engine 4.23 - VR preview greyed out

Development Platform & Builds XR Development
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1

Hello,

with the current Version 4.23 we have a Problem with the VR preview. The button is greyed out. We use the Vive HTC Pro and a NVIDIA Geforce GTX 1080 Ti (see Screenshots).

Could anyone help?

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2

In Settings-> Plugins look for SteamVR plugin, make sure it’s Enabled and restart the editor.

3

Also be sure that SteamVR and the headset are running when opening your project.