When I set my preference to have the zoom controlled with the mouse wheel, rather than the mouse wheel scrolling the view vertically, it works briefly, but then reverts to the original behavior. The preference selection still shows the new setting, but the web app is not honoring it. If I turn it off and on again, it works again...and then doesn’t. Dev mode and design mode.
In Dev mode, it works until I use the center-mouse button, instead of the left mouse button, to pan. In Design mode, the left mouse button and drag selects, so I only use center + drag to pan. In that mode, the wheel zoom works until the first use of the center button. Changing modes resets things to the expected state (temporarily).