Razer Enki chair.. slight wobble when locked upright?

New Member Just got my daughter a new Razer Enki Quartz chair. Assembled it... comfortable chair but when sitting on it there a slight rock / wobble to it. Previous gaming chair felt absolutely solid sitting on it although this chair didn't tilt. Looking underneath the rocking / wobble is coming from the black part that actually tilts the chair. Just ever so slightly when u sit in it upright u can feel it wobble back and forward. Is this normal? Or can it be tightened to feel solid when sitting upright?