The coating on the textured PEI plate may deteriorate as more and more prints are removed, and the adhesion and release may change, although the photos show something entirely different. I found that liquid glue improved adhesion and release significantly. More info on glue types and filament compatibility here.
Was the plate perhaps placed on top of the two corner guides at the back left and right of the bed? This would lift it slightly and may cause the wider prime line shown. I’m sure everyone has done this at some time.
Otherwise it may be a Z-homing issue.