diff --git a/cmd/bd/graph.go b/cmd/bd/graph.go
index 53e54789..cc69d4d7 100644
--- a/cmd/bd/graph.go
+++ b/cmd/bd/graph.go
@@ -99,7 +99,7 @@ Colors indicate status:
 		}
 
 		// Render ASCII graph
-		renderGraph(layout, nil)
+		renderGraph(layout, subgraph)
 	},
 }
 
diff --git a/npm-package/scripts/postinstall.js b/npm-package/scripts/postinstall.js
index fd6951f6..7e24059e 100755
--- a/npm-package/scripts/postinstall.js
+++ b/npm-package/scripts/postinstall.js
@@ -73,8 +73,12 @@ function downloadFile(url, dest) {
       response.pipe(file);
 
       file.on('finish', () => {
-        file.close();
-        resolve();
+        // Wait for file.close() to complete before resolving
+        // This is critical on Windows where the file may still be locked
+        file.close((err) => {
+          if (err) reject(err);
+          else resolve();
+        });
       });
     });