think that can happen on most wide zigzag machines ;o( Solution is to use the right needle for the fabric (I assume you do) get a straight stitch needle plate, and ideally use a straight stitch foot. You can get both for this machine (but at Bernina prices...) Probably just the needle plate would do the job.
Your are right handed and the videographer should be at your left front. Your hands are always in the way and the most intricate steps are of interest to most 480 first timers.
