I have a unique issue that started recently that I haven't had before and the resolution eludes me so far.
For the sake of this issue, let's say I'm printing a rectangle that is 2 inches by 5 inches and 1/8 inch thick.
Here's a photo of the results.....
The area that's smudged on the part has a corresponding place on the print bed where there's material smeared and stuck to the print bed.
When I pull the part off the print bed, the material that should stay on the part seems to be smeared onto the print bed instead.
It almost looks like the print head is dipping down into the print randomly for some reason and smearing the layers below.
The belts are all tight, the motors secure, nothing I can find is loose, the print bed is leveled.
There are no bubbles or raised points on the print bed. It's glass with kapton tape overlay.
Here's one of the smears on the print bed....