has anybody had a sample line close back on itself. I'm creating some individual sample lines which are not straight segments.

for example-from the alignment the sample line goes horizontal for say a 100', then it bends in a southeast direction. this one worked finel

the second on goes horizontal and then bends in a northeast direction. after i selected the polyline to convert to a sample line, it closed back on itself.

what?

anybody know what is causing this?

thanks