diff --git a/py/utils/embedding.py b/py/utils/embedding.py
index ce8ae7f..5f3afd6 100644
--- a/py/utils/embedding.py
+++ b/py/utils/embedding.py
@@ -1,35 +1,67 @@
 import os
-
 from comfy.sd1_clip import expand_directory_list
 
-
-# refer. https://github.com/comfyanonymous/ComfyUI/blob/dccca1daa5af1954d55918f365e83a3331019549/comfy/sd1_clip.py#L284-L309
 def get_embedding_file_path(embedding_name, clip):
-    embedding_directory = clip.embedding_directory
+    """
+    Resolves the file path for an embedding by searching directories and checking file extensions.
+
+    Args:
+        embedding_name (str): The name of the embedding file (without an extension).
+        clip (object): An object containing the attribute `embedding_directory`, 
+                       which specifies directories to search.
+
+    Returns:
+        str or None: Full path to the embedding file if found, otherwise None.
+    """
+    # Validate embedding_directory
+    embedding_directory = getattr(clip, "embedding_directory", None)
+    if not embedding_directory:
+        raise ValueError("The 'embedding_directory' attribute in the clip object is None or empty.")
+    
     if isinstance(embedding_directory, str):
         embedding_directory = [embedding_directory]
 
-    embedding_directory = expand_directory_list(embedding_directory)
+    # Expand directories using the provided function
+    try:
+        embedding_directory = expand_directory_list(embedding_directory)
+    except Exception as e:
+        raise ValueError(f"Error expanding directory list: {e}")
+
+    if not embedding_directory:
+        raise ValueError("No valid directories found after expansion.")
 
     valid_file = None
+    extensions = [".safetensors", ".pt", ".bin"]
+
     for embed_dir in embedding_directory:
-        embed_path = os.path.abspath(os.path.join(embed_dir, embedding_name))
         embed_dir = os.path.abspath(embed_dir)
-        try:
-            if os.path.commonpath((embed_dir, embed_path)) != embed_dir:
-                continue
-        except Exception:
+        if not os.path.isdir(embed_dir):
+            # Skip invalid directories
             continue
-        if not os.path.isfile(embed_path):
-            extensions = [".safetensors", ".pt", ".bin"]
-            for x in extensions:
-                t = embed_path + x
-                if os.path.isfile(t):
-                    valid_file = t
-                    break
-        else:
+
+        # Construct the absolute path for the embedding name
+        embed_path = os.path.abspath(os.path.join(embed_dir, embedding_name))
+        
+        try:
+            # Ensure embed_path is within embed_dir (security check)
+            if os.path.commonpath([embed_dir, embed_path]) != embed_dir:
+                continue
+        except Exception as e:
+            # Skip this directory on exception (e.g., invalid path comparison)
+            continue
+
+        # Check if the file exists with or without extensions
+        if os.path.isfile(embed_path):
             valid_file = embed_path
-        if valid_file is not None:
+        else:
+            for ext in extensions:
+                candidate_path = embed_path + ext
+                if os.path.isfile(candidate_path):
+                    valid_file = candidate_path
+                    break
+
+        # Stop searching if a valid file is found
+        if valid_file:
             break
 
     return valid_file