Scroll wheel doesn't work to zoom in and out

I use Harmony for work every day and am forced to use the 1 and 2 buttons to zoom in and out which gets the job done but sometimes I really wish I had the option to use the scroll wheel.

One time, I had to make my setup portable so I transferred Harmony to my laptop and for some reason on that laptop, the scroll wheel DID zoom in and out as it should.

It’s not a problem with my mouse, as it scrolls just fine on websites and other drawing programs. So I’m thinking I must have some sort of setting preventing it from working on Harmony that I can’t figure out.

I should also mention that the scroll wheel DOES work on Harmony to use the scroll bars in the timeline, it just doesn’t work for zooming in and out.

Anyone have any ideas?