now I drew lines inside the shape to “cut it in pieces” and to find out if anything happens…
One sector after another was showing a face. Then I deleted the lines and got this…
Assuming the edges are coplanar, try tracing over any edge and see whether that causes sketchup to create the face. If that fails, most likely you have a small gap (or gaps) somewhere. One way to search for gaps is to draw an edge across between two segment endpoints and see which side doesn’t form a face. Repeatedly draw edges across the non-face part and you will quickly focus in on the gap.
I guess you were telling me to do what I did on the pic above ?
My mistake. I thought you’d done that before. Now you’ve got it, though.
