@Alex_Vermeer if you have rough surfaces on one side of your parts near the hinge side - then that sounds very much like laser flare. I don’t think that laser spot photo is really any evidence that your laser spot is fine.
It is very difficult to take photos of the spot through the cover - and there are so many factors that can mean you miss detail; the camera exposure, the thickness of the paper, etc, etc,…
Moreoever - for there to be a completely separate issue that causes those same specific symptoms; ie rough surfaces on one side that are worse near the hinge, seems unlikely to me - that is, if you really do have exactly those symptoms.
Do you have a lot of flaking on the rough surface side as well?
Have you tried my test cross pieces? Form1+ laser flare issues illustrated - pics and video they illustrate the symptoms really well.