diff --git a/crates/ui-egui/src/panels/lumetri.rs b/crates/ui-egui/src/panels/lumetri.rs
--- a/crates/ui-egui/src/panels/lumetri.rs
+++ b/crates/ui-egui/src/panels/lumetri.rs
@@ -515,7 +515,7 @@ fn curve_editor(ui: &mut egui::Ui, e: &EffectInstance, id: &str, hue: bool, col:
         filmcraft_render::effects::curve_lut(&draw_pts, 128)
     };
     let line: Vec<Pos2> = lut.iter().enumerate().map(|(i, y)| to_screen([i as f32 / 127.0, y.clamp(0.0, 1.0)])).collect();
-    p.add(egui::Shape::line(line, Stroke::new(1.5, col)));
+    p.add(egui::Shape::line(line.clone(), Stroke::new(1.5, col)));
     let drag_key = egui::Id::unique(("curve-drag", clip.0, id));
     let mut dragging: Option<usize> = ui.data(|d| d.get_temp(drag_key));
     let mut new_pts = pts.clone();
@@ -545,6 +545,25 @@ fn curve_editor(ui: &mut egui::Ui, e: &EffectInstance, id: &str, hue: bool, col:
     if resp.drag_stopped() {
         dragging = None;
     }
+    // A plain click on the curve places a point where it landed (#3431): before, only a drag
+    // created points, so the curve ignored the click the interaction promises. A click on a
+    // point selects it (as a drag start does); a click off the curve adds nothing, so the RGB
+    // double-click reset and the hue double-click remove keep working.
+    if resp.clicked()
+        && let Some(pos) = resp.interact_pointer_pos()
+    {
+        let near =
+            pts.iter().enumerate().map(|(i, q)| (i, to_screen(*q).distance(pos))).filter(|(_, d)| *d < 9.0).min_by(|a, b| a.1.total_cmp(&b.1)).map(|x| x.0);
+        match near {
+            Some(i) => dragging = Some(i),
+            None if line.iter().any(|p| p.distance(pos) < 9.0) => {
+                dragging = None;
+                new_pts.push(from_screen(pos));
+                changed = true;
+            }
+            _ => dragging = None,
+        }
+    }
     if resp.double_clicked()
         && let Some(pos) = resp.interact_pointer_pos()
         && let Some(i) = pts.iter().position(|q| to_screen(*q).distance(pos) < 9.0)