VREditor: Right eye freezes when looking at a selected object with temporal upsampling enabled

The right eye of the HMD freezes when looking at an object that has been selected in VR Mode with Temporal Upsampling on. Happens with both Vive and Oculus. I did not see this when playing in VR.

I also noticed that while I selected an object and moved it, I only got a highlight around the object in one eye.

This feature was not in 4.18.

Repro:

1. Open any project
2. Enable Temporal Upsampling (Project Settings > Rendering)
3. Create a new VR Basic level
4. Enter VR Mode
5. Select an object and look at it (do not hold onto the object once selected)