diff --git a/operators/operators.py b/operators/operators.py
index da298bf..e0fd8ac 100644
--- a/operators/operators.py
+++ b/operators/operators.py
@@ -338,7 +338,8 @@ class VSETB_OT_load_projects(Operator):
                asset_type = project.asset_types.add()
                asset_type.name = asset_type_data['name']
         
-            project.set_strip_metadata()
+        if settings.active_project:
+            settings.active_project.set_strip_metadata()
         
         bpy.ops.vse_toolbox.load_assets()
 
diff --git a/properties.py b/properties.py
index 98879c0..330f918 100644
--- a/properties.py
+++ b/properties.py
@@ -44,6 +44,9 @@ def on_project_updated(self, context):
     print('Update active Project')
 
     bpy.ops.vse_toolbox.load_assets()
+
+    if settings.active_project:
+        settings.active_project.set_strip_metadata()
     
 def get_tracker_items(self, context):
     return [(norm_str(a.name, format=str.upper), a.name, "", i) for i, a in enumerate(TRACKERS)]
@@ -135,7 +138,15 @@ class Project(PropertyGroup):
     metadata_types : CollectionProperty(type=MetadataType)
     type : StringProperty()
 
-    def set_strip_metadata(self):            
+    def set_strip_metadata(self):
+        
+        # Clear Metadatas
+        for attr in list(Metadata.__annotations__.keys()):
+            if hasattr(Metadata, attr):
+                delattr(Metadata, attr)
+                del Metadata.__annotations__[attr]
+
+
         for metadata_type in self.metadata_types:
             prop_name = metadata_type.name
             if metadata_type['choices']: