it is an ordinary cross-sectional view
Hello
That's why I asked you this:
When you create a cross-section by multiple strokes in SolidWorks 2013, normally a menu asks you if you want to create a flattened section or a "normal" section.
In the properties of a normal cut, you will not have the option to hide or not the cut line breaks.
If by mistake, you checked: Don't show anymore when you got the message asking you what type of cut to make, you could have created a flattened cut without wanting to.
In the SolidWorks options, Messages\Error... The option for flattened cuts to be ticked is:
Alert New feature for cross-sectional view...
If you then make a cut again in several strokes, the choice of cut will be requested again.
I am attaching a video, but it may not be your problem.
Mickael
coupe.zip