Possibily to hide/unhide a node (bis)

Hi

To follow up on this post, even though it's not very relevant but it's not pretty.

When a group is "suppressed" at one end of the grid, on the connecting lines of the tree there is still slag from the missing groups.
Capture d’écran 2022-11-02 075254

Regards

olivier

Noeud_visible.zip (7.8 KB)

Are you sure you send the correct (or finished) project as I cannot reproduce what you explain / show here with the app.