Quick Look video scrubbing on macOS High Sierra Previously, when previewing a video in Quick Look, scrolling right and left on the trackpad would scrub forward and backward, but after upgrading to macOS High Sierra, this seems no longer to be the case. 

Is there any way to re-enable this setting? Or, if not, are there any alternative ways to scrub? (Dragging the line on the progress bar is not nuanced enough, especially for longer videos.)
As of macOS 10.13.2 (17C88) it is working correctly once again.