I have a problem with my SM52. On primarily one of our towers, we're having issues with textures or lines showing up in background screens. The angle of the lines may change, or it may look different on one side of the sheet versus the other. Sometimes it may only show up on just one side, and sometimes it may not show up at all. The picture I'm including shows snips from 3 different jobs. I think we've been able to narrow it down to just the one tower. At a time we thought it was more prevalent when we'd run our Reflex Blue, but we've since had a couple of different greens that produced the same type of effect. We've gone up and down this tower, we've pulled and checked rollers and bearings, made sure we have the correct roller stripe settings. We've also looked for excessive endplay in the rollers to try and find a solution, but we can't seem to find the cause. Has anyone seen or experienced anything like this with their machine. As always, any and all help is greatly appreciated. I should also add that we have replaced the blanket and made sure we're packed right while chasing this issue. We're set up identically to the other towers, so it feels like it may be something mechanical happening, but I could be missing something that I should be looking at.