Deploy public authenticated AutoML gateway

gateway_app.py

@@ -1873,7 +1873,21 @@ def predict_remote_ui_staged(*args, **kwargs):
 
 def _staged_visual_update(state: Any, index: int) -> Any:
     updates = _staged_visual_updates(state)
-    return updates[index]
+    update = updates[index]
+    if (
+        index > 0
+        and isinstance(update, Mapping)
+        and update.get("visible") is False
+        and update.get("value") is None
+    ):
+        # Gradio 6.17 can abort a chained event after applying an explicit
+        # hidden/empty Image update (the browser reports "Method not
+        # implemented").  That prevents a later task-relevant image, such as
+        # an instance mask overlay, from rendering.  A skip is the honest
+        # no-op for irrelevant image slots; model/package changes already run
+        # the canonical reset handler that clears prior visual values.
+        return gr.skip()
+    return update
 
 
 def _staged_visual_warning(state: Any) -> Any: