I noticed that the Mouse Wheel Zoom Options and the available keybindings are not well designed and in addition some of the functions are broken.
With the following settings: 1. Zoom factor set at 2.0 (or higher) for horizontal/verticall & 2. Zoom In / Out at Cursor. 3. Simultaneous zoom option turned off. Trry zooming in / out (with Shift+Alt + Wheel). Zooming stops if the zoom fector is set higher/smaller than the reminaing track height is. And also the Zoom behavi