diff --git a/nullptr/atlas_builder.py b/nullptr/atlas_builder.py
index d8c201f..7d91116 100644
--- a/nullptr/atlas_builder.py
+++ b/nullptr/atlas_builder.py
@@ -28,6 +28,8 @@ class AtlasBuilder:
     for w in waypoints:
       if self.stop_auto:
         break
+      if 'UNCHARTED' in w.traits:
+        continue
       if 'MARKETPLACE' in w.traits:
         self.api.marketplace(w)
         print(f'marketplace at {w}')
diff --git a/nullptr/store.py b/nullptr/store.py
index 194e276..c15fc00 100644
--- a/nullptr/store.py
+++ b/nullptr/store.py
@@ -30,6 +30,20 @@ class Store:
     data['store'] = self
     obj.__dict__ = data
   
+  def get_file(self, typ, path):
+    if not isfile(path):
+      return None
+    with open(path) as f:
+      data = json.load(f)
+    symbol = mg(data, 'symbol')
+    oid = f'{symbol}.{typ.ext()}'
+    if oid in self.data:
+      return self.data[oid]
+    obj = typ(symbol, self)
+    self.load(obj)
+    self.data[oid] = obj
+    return obj
+  
   def store(self, obj):
     path = self.path(obj)
     path_dir = dirname(path)
@@ -69,8 +83,7 @@ class Store:
         continue
       if not fil.endswith(ext):
         continue
-      symbol = f[:-len(ext)]
-      yield self.get(typ, symbol)
+      yield self.get_file(typ, fil)
     
   
   def flush(self):
@@ -81,4 +94,4 @@ class Store:
       self.store(obj)
     self.dirty_objects = set()
     dur = time() - start_time
-    print(f'flush done {it} items {dur:.2f}')
+    # print(f'flush done {it} items {dur:.2f}')