--- a/filecache.py	Mon Jun 24 19:08:24 2019 +0300
+++ b/filecache.py	Mon Jun 24 19:21:49 2019 +0300
@@ -105,7 +105,7 @@
                 subfile.valid = False
                 subfile.problem = 'Description not found'
             if subfile.valid:
-                subfile.vertices = set(parse.model_vertices(model))
+                subfile.vertices = set(parse.model_vertices(model, file_cache = self))
                 subfile.flatness = {'x', 'y', 'z'}
                 for vertex in subfile.vertices:
                     # Use list(subfile.flatness) for iteration because the