So here’s how I reproduce this:
Start with a blank page.
In page mode, select a step anywhere on the page.
Double click on the step’s track selector to go into track mode
Double click on velocity to go into the velocity attribute page
Click on the edit button to turn it yellow (preview mode I think it’s called?)
On track zero you’ll see the position of your step.
Hold down the corresponding step on track zero and on the right circle it will show you the velocity of the step (64 by default) and the pitch.
While you have the step held down, press any button in the inner circle to change the step’s pitch.
The velocity will also change (by itself!) to 60.