I have made a part as a symmetric part, afterwards, I have converted it to sheet metal so that I could make a drawing with a "unfolded sheet metal" view.
As you can see, the folding line does not appear, despite being selected as visible (red circle). As you can see the folding note does appear.
If I click on the folding line in the property manager, it recognises the line, indeed I can measure from this line to another line.
I guess SW recognises the line but SW is not displaying this line.
Any idea on how can I fix this problem?