fix

app.py

@@ -499,6 +499,8 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
     def get_recent_gallery_items():
         gallery_items = []
         for r in reversed(recent_generations):
+            if any(x is None for x in r.values()):
+                continue
             gallery_items.append((r["flux-dev"], f"FLUX-dev: {r['prompt']}"))
             gallery_items.append(
                 (r["hidream-dev"], f"HiDream-dev: {r['prompt']}"))