Can you:A bit more digging and it turns out that, at least on my PC, I can cause the picture to become jerky again by changing the video brightness (View > Change Display Properties). Once I do this, IPP display becomes jerky. Any non-zero value in HKEY_CURRENT_USER\Software\DRD Systems\VideoReDo-TVSuite4\PlaybackDeviceOptions\Brightness causes it.
Yes, it does. Will look into this.An interesting thing I noticed is that when using VR to adjust the brightness the inital movement of the slider causes the clip shown in VR to step off the currently shown frame.