I got my X5SA Pro today and put it together. I haven't powered it up yet, and other than issues with missing hardware and crap parts, I've found an issue that I feel needs to be addressed. When I move the X axis front and back on the Y, the belt on the right front pulleys moves up and down. My question is, can this be adjusted or is it a problem with the pulled itself? The video was taken from the side so it's the pulley on the left.Thank you