Log a warning instead of raising an issue

sleap/nn/tracker/components.py

@@ -96,13 +96,26 @@ def object_keypoint_similarity(
         if max_n_keypoints == 0:
             return 0
 
-        # Compute distances
+        # Make sure the sizes of kp_precision and n_points match
         if kp_precision.size > 1 and 2 * kp_precision.size != ref_points.size:
+            # Correct kp_precision size to fit number of points
+            n_points = ref_points.size // 2
             mess = (
                 "keypoint_errors array should have the same size as the number of "
-                f"keypoints in the instance: {kp_precision.size} != {ref_points.size // 2}"
+                f"keypoints in the instance: {kp_precision.size} != {n_points}"
             )
-            raise ValueError(mess)
+
+            if kp_precision.size > n_points:
+                kp_precision = kp_precision[:n_points]
+                mess += "\nTruncating keypoint_errors array."
+
+            else:  # elif kp_precision.size < n_points:
+                pad = n_points - kp_precision.size
+                kp_precision = np.pad(kp_precision, (0, pad), "edge")
+                mess += "\nPadding keypoint_errors array by repeating the last value."
+            logger.warning(mess)
+
+        # Compute distances
         dists = np.sum((query_points - ref_points) ** 2, axis=1) * kp_precision
 
         similarity = (