Beginner. I need to join the nodes in a drawing in Affinity Designer. Whenever I select the entire drawing and click join nodes, random lines appear all over the drawing. Any idea how to solve?
I guess the rightmost shape in the next image resembles your unwanted result when you select the leftmost version and use "Join Curves"
A.Designer has no idea what you see the right joining order should be. It tries to add somehow a short total amount of new curve between the pieces and tries to respect which was a beginning and which was the end.
You should draw the pieces with snapping on to be able to continue from the right place without a gap. Or you should move the ends of the pieces manually with the node tool. Again snapping helps to avoid gaps if the snapping options are set properly
Here's a version which is edited with the node tool: