diff --git a/croppa/main.py b/croppa/main.py
index 3f6fb00..d3d58f8 100644
--- a/croppa/main.py
+++ b/croppa/main.py
@@ -1103,16 +1103,14 @@ class VideoEditor:
         if self.rotation_angle != 0:
             processed_frame = self.apply_rotation(processed_frame)
 
-        # Apply crop (interpreted in rotated frame coordinates)
-        if self.crop_rect:
-            x, y, w, h = map(int, self.crop_rect)
-            # Ensure crop is within frame bounds (rotated frame)
-            x = max(0, min(x, processed_frame.shape[1] - 1))
-            y = max(0, min(y, processed_frame.shape[0] - 1))
-            w = min(w, processed_frame.shape[1] - x)
-            h = min(h, processed_frame.shape[0] - y)
-            if w > 0 and h > 0:
-                processed_frame = processed_frame[y : y + h, x : x + w]
+        # Apply crop (interpreted in rotated frame coordinates) using EFFECTIVE rect
+        eff_x, eff_y, eff_w, eff_h = self._get_effective_crop_rect_for_frame(getattr(self, 'current_frame', 0))
+        if eff_w > 0 and eff_h > 0:
+            eff_x = max(0, min(eff_x, processed_frame.shape[1] - 1))
+            eff_y = max(0, min(eff_y, processed_frame.shape[0] - 1))
+            eff_w = min(eff_w, processed_frame.shape[1] - eff_x)
+            eff_h = min(eff_h, processed_frame.shape[0] - eff_y)
+            processed_frame = processed_frame[eff_y : eff_y + eff_h, eff_x : eff_x + eff_w]
 
         # Apply zoom
         if self.zoom_factor != 1.0:
@@ -2024,6 +2022,12 @@ class VideoEditor:
                 sx, sy = self._map_rotated_to_screen(interp[0], interp[1])
                 cv2.line(canvas, (sx - 10, sy), (sx + 10, sy), (255, 0, 0), 2)
                 cv2.line(canvas, (sx, sy - 10), (sx, sy + 10), (255, 0, 0), 2)
+                # Draw a faint outline of the effective crop to confirm follow
+                eff_x, eff_y, eff_w, eff_h = self._get_effective_crop_rect_for_frame(self.current_frame)
+                # Map rotated crop corners to screen for debug outline
+                tlx, tly = self._map_rotated_to_screen(eff_x, eff_y)
+                brx, bry = self._map_rotated_to_screen(eff_x + eff_w, eff_y + eff_h)
+                cv2.rectangle(canvas, (tlx, tly), (brx, bry), (255, 0, 0), 1)
 
         # Draw timeline
         self.draw_timeline(canvas)