Arrow keys not always working

Sometimes the arrow keys are not responsive when I am trying to select a sample. Oddly this happens more when I use my right hand instead of my left to press the buttons. Any ideas what this is about?

Buttons could be broken,

or could be psychological. A sinister plan by the leftest of hands.

parkinsons?

I think it has to do with the speed used when I push the buttons. If I use a slower movement to press the button, it doesn’t always register, and that is how I tend to do it with my right hand. I feel like there is some sexual innuendo there, but that is unintentional. Anyway, it works fine now.