fixes #4146

a81c2606 · Victor Doval · GitHub · 1d5caca5 · a81c2606
--- a/nodes/modifier_change/delete_loose.py
+++ b/nodes/modifier_change/delete_loose.py
@@ -47,7 +47,7 @@ class SvDeleteLooseNode(bpy.types.Node, SverchCustomTreeNode):
        verts_out = []
        verts_mask_out = []
        poly_edge_out = []
-        if len(poly_edge[0][0]) == 2:
+        if len(poly_edge[0]) > 0 and len(poly_edge[0][0]) == 2:
            self.outputs['PolyEdge'].label = "Edges"
        else:
            self.outputs['PolyEdge'].label = "Polygons"