diff --git a/modules/cache.py b/modules/cache.py
index 07180602..28d42a8c 100644
--- a/modules/cache.py
+++ b/modules/cache.py
@@ -80,18 +80,18 @@ def cached_data_for_file(subsection, title, filename, func):
 
     entry = existing_cache.get(title)
     if entry:
-        cached_mtime = existing_cache[title].get("mtime", 0)
+        cached_mtime = entry.get("mtime", 0)
         if ondisk_mtime > cached_mtime:
             entry = None
 
     if not entry:
-        entry = func()
-        if entry is None:
+        value = func()
+        if value is None:
             return None
 
-        entry['mtime'] = ondisk_mtime
+        entry = {'mtime': ondisk_mtime, 'value': value}
         existing_cache[title] = entry
 
         dump_cache()
 
-    return entry
+    return entry['value']
diff --git a/modules/ui_extra_networks.py b/modules/ui_extra_networks.py
index 760fba43..a4927c11 100644
--- a/modules/ui_extra_networks.py
+++ b/modules/ui_extra_networks.py
@@ -52,7 +52,7 @@ def get_metadata(page: str = "", item: str = ""):
     if metadata is None:
         return JSONResponse({})
 
-    return JSONResponse({"metadata": metadata})
+    return JSONResponse({"metadata": json.dumps(metadata, indent=4, ensure_ascii=False)})
 
 
 def get_single_card(page: str = "", tabname: str = "", name: str = ""):
@@ -66,6 +66,7 @@ def get_single_card(page: str = "", tabname: str = "", name: str = ""):
         errors.display(e, "creating item for extra network")
         item = page.items.get(name)
 
+    page.read_user_metadata(item)
     item_html = page.create_html_for_item(item, tabname)
 
     return JSONResponse({"html": item_html})
diff --git a/modules/ui_extra_networks_checkpoints.py b/modules/ui_extra_networks_checkpoints.py
index e73b5b1f..76780cfd 100644
--- a/modules/ui_extra_networks_checkpoints.py
+++ b/modules/ui_extra_networks_checkpoints.py
@@ -13,7 +13,7 @@ class ExtraNetworksPageCheckpoints(ui_extra_networks.ExtraNetworksPage):
         shared.refresh_checkpoints()
 
     def create_item(self, name, index=None):
-        checkpoint: sd_models.CheckpointInfo = sd_models.checkpoints_list.get(name)
+        checkpoint: sd_models.CheckpointInfo = sd_models.checkpoint_aliases.get(name)
         path, ext = os.path.splitext(checkpoint.filename)
         return {
             "name": checkpoint.name_for_extra,
@@ -24,7 +24,6 @@ class ExtraNetworksPageCheckpoints(ui_extra_networks.ExtraNetworksPage):
             "onclick": '"' + html.escape(f"""return selectCheckpoint({quote_js(name)})""") + '"',
             "local_preview": f"{path}.{shared.opts.samples_format}",
             "sort_keys": {'default': index, **self.get_sort_keys(checkpoint.filename)},
-
         }
 
     def list_items(self):