I think I see what you are seeing - if I zoom in extremely closely. You have the tolerance set to 0.001 mm, and the “extra” lines are within that distance in the x-y plane. My guess is it’s just a result of the extreme zoom.
[quote=“MrTheNema, post:1, topic:40133”]
Can this create a problem when doing trim or split command?
[/quote]Are you having any problems with Trim or Split?
Hi NB - as far as I can see everything is ‘there’ At the extreme zoom they appear to be drawing in the wrong place, or they jump around a little as you change the zoom, but there is nothing drawing that is not in the file as far as I can see - there are two locked lines in the file - these are the gray lines.