diff --git a/croppa/main.py b/croppa/main.py
index 889d144..47a01f8 100644
--- a/croppa/main.py
+++ b/croppa/main.py
@@ -1057,38 +1057,50 @@ class VideoEditor:
         self.current_frame = max(0, min(frame_number, self.total_frames - 1))
         self.load_current_frame()
 
+    def _get_sorted_markers(self):
+        """Return sorted unique marker list [cut_start_frame, cut_end_frame] as ints within bounds."""
+        markers = []
+        for m in (self.cut_start_frame, self.cut_end_frame):
+            if isinstance(m, int):
+                markers.append(m)
+        if not markers:
+            return []
+        # Clamp and dedupe
+        clamped = set(max(0, min(m, self.total_frames - 1)) for m in markers)
+        return sorted(clamped)
+
     def jump_to_previous_marker(self):
-        """Jump to the previous defined marker (cut_start_frame/cut_end_frame)."""
+        """Jump to the previous tracking marker (frame with tracking points)."""
         if self.is_image_mode:
             return
-        markers = [m for m in [self.cut_start_frame, self.cut_end_frame] if isinstance(m, int)]
-        if not markers:
+        self.stop_auto_repeat_seek()
+        tracking_frames = sorted(k for k, v in self.tracking_points.items() if v)
+        if not tracking_frames:
+            print("DEBUG: No tracking markers; prev jump ignored")
             return
-        markers = sorted(set(max(0, min(m, self.total_frames - 1)) for m in markers))
-        # Find previous marker relative to current_frame (wrap if needed)
-        prev = None
-        for m in markers:
-            if m < self.current_frame:
-                prev = m
-        if prev is None:
-            prev = markers[-1]
-        self.seek_to_frame(prev)
+        current = self.current_frame
+        candidates = [f for f in tracking_frames if f < current]
+        target = candidates[-1] if candidates else tracking_frames[-1]
+        print(f"DEBUG: Jump prev tracking from {current} -> {target}; tracking_frames={tracking_frames}")
+        self.seek_to_frame(target)
 
     def jump_to_next_marker(self):
-        """Jump to the next defined marker (cut_start_frame/cut_end_frame)."""
+        """Jump to the next tracking marker (frame with tracking points)."""
         if self.is_image_mode:
             return
-        markers = [m for m in [self.cut_start_frame, self.cut_end_frame] if isinstance(m, int)]
-        if not markers:
+        self.stop_auto_repeat_seek()
+        tracking_frames = sorted(k for k, v in self.tracking_points.items() if v)
+        if not tracking_frames:
+            print("DEBUG: No tracking markers; next jump ignored")
             return
-        markers = sorted(set(max(0, min(m, self.total_frames - 1)) for m in markers))
-        # Find next marker greater than current_frame (wrap if needed)
-        for m in markers:
-            if m > self.current_frame:
-                self.seek_to_frame(m)
+        current = self.current_frame
+        for f in tracking_frames:
+            if f > current:
+                print(f"DEBUG: Jump next tracking from {current} -> {f}; tracking_frames={tracking_frames}")
+                self.seek_to_frame(f)
                 return
-        # Wrap to first
-        self.seek_to_frame(markers[0])
+        print(f"DEBUG: Jump next tracking wrap from {current} -> {tracking_frames[0]}; tracking_frames={tracking_frames}")
+        self.seek_to_frame(tracking_frames[0])
 
     def advance_frame(self) -> bool:
         """Advance to next frame - handles playback speed and marker looping"""
diff --git a/croppa/spec.md b/croppa/spec.md
index 2ebff37..947ab5a 100644
--- a/croppa/spec.md
+++ b/croppa/spec.md
@@ -57,6 +57,10 @@ That coordinate is to be mapped to the bottom left corner of the original raw un
 - **Crop follows**: Crop area centers on tracked object
 - **Display** Points are rendered as blue dots per frame, in addition dots are rendered on each frame for each dot on the previous (in red) and next (in green) frame
 
+#### Motion Tracking Navigation
+- **,**: Jump to previous tracking marker (previous frame that has one or more tracking points). Wrap-around supported.
+- **.**: Jump to next tracking marker (next frame that has one or more tracking points). Wrap-around supported.
+
 ### Markers and Looping
 - **1**: Set cut start marker at current frame
 - **2**: Set cut end marker at current frame