An easy way to check is with the Trim-Shapes tool to check for “wrong” points, Zoom in and correct, when your shape is continuous red it is a closed shape.
Ungroup and check your shape, your shape doesn´t highlight Red:
When you click on the outline, you will see the traveling lines (“marching ants”) do not go all the way around your path. This indicates it is not a closed path. Zoom in while in the Node Edit mode and you will see why.
ok, merci pour vos réponses, j’ai trouvé effectivement ou la ligne était ouverte, j’ai modifié mon tracé et tout est rentré dans l’ordre.
merci le problème est réglé.