Official comment
Hey Alex,
Sounds like you actually have a stuck track skip forward button; the jog can be used to "hyper search" through tracks while holding that button, so that's why it seems to pause when you touch it.
My recommendation is to check the button for any kind of debris that might be causing it to stick down, but if there's nothing around the plastic button itself, then it could be the contacts of the switch have joined or failed "closed" so it's registering the press, in which case it should be serviced. Please contact a Pioneer DJ authorized service centre in your region if you decide to go that route.