Hi, apologies if this has been asked before. I have ironed out most of the problems I've had with my Ender 3 Pro, but with about one print out of 3 or 4, I get a dotted line across part of one or a few of the layers, with the rest of the print being OK. If you look at the attached photo, it is near the top of this print just before I cancelled it.
Any ideas what it could be ? I've levelled the bed (which has improved the general smoothness of the print), but not helped with this.
Any help greatly appreciated
Thanks
John