Jumping values on the repeat/roll touch strip

I just got the drumbrute impact used from long and mcquade. I’m really loving the immediacy and sounds! I’ve noticed the repeat/roll strip acts weird. If I press down with a little more pressure, especially in the zone between the buttons, then it jumps to 3 and 4. I’m assuming this is an issue with this unit. Is this very common? I got a decent price but would return and buy new if this isn’t likely to also happen on a new unit.

I posted on the arturia reddit and included a video there:
https://www.reddit.com/r/arturia/comments/1g1nuca/is_my_impact_faulty/