When trying to move the "Preview" slider, in the multires modifier; it won't allow me to. I even tried inputting it manually (then hit enter), and it still reverts to zero. Went over the video again and again, and it still isn't working.
Figured it out. I was using the gizmo from the lighting scene, in the lighting course. Not sure why it made a difference; but I used the gizmo from the source files here, and can now alter the slider.
