Update app.py

app.py

@@ -51,9 +51,9 @@ if uploaded_files:
         st.markdown(f"---\n### 🖼️ {file.name}")
         original = Image.open(BytesIO(file_bytes)).convert("RGB")
 
+        # Init state
         if f"original_{key}" not in st.session_state:
             st.session_state[f"original_{key}"] = original
-            st.session_state[f"angle_{key}"] = 0
             st.session_state[f"enhance_{key}"] = False
             st.session_state[f"filename_{key}"] = file.name.rsplit(".", 1)[0]
             w, h = original.size
@@ -62,6 +62,10 @@ if uploaded_files:
             st.session_state[f"{key}_right"] = w
             st.session_state[f"{key}_bottom"] = h
 
+        # ✅ Ensure angle is always initialized before slider
+        if f"angle_{key}" not in st.session_state:
+            st.session_state[f"angle_{key}"] = 0
+
         if mode == "Normal Mode":
             st.image(resize_image(original), use_container_width=True)
             processed_images.append(original)