Quick Zoom Only Partially Works

Cubase
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1
  1. Enable “Quick Zoom” in Preferences > Editing
  2. Create or open a project with several MIDI or Instrument tracks, with multiple parts and event/controller content visible on each.
  3. Zoom using the time scale or the zoom slider. Some of the content remains visible while zooming.
  4. Zoom using the mouse wheel or shortcut keys. All content remains visible while zooming.