Shift/Ctrl mouse wheel navigation does not work

Drag a sample from the media tab on the right into the sampler control at the bottom and then try to scroll/zoom with the mouse wheel causes weird behaviour.

  1. First the mouse wheel scrolls very very slow
  2. Hold shift and it scrolls fast
  3. Release shift and it still scrolls fast
  4. Hold ctrl and it zooms
  5. Let go of ctrl and it still zooms
  6. Hold shift and it continues zooming instead of scrolling
  7. Click out of the window and back in and shift goes back to scrolling

This does not occur if you drop the sample into the arranger first - only if you drag the sample straight into the sampler control

Cubase Pro 9.5.20 on Windows 10