Update state.py

state.py

@@ -295,6 +295,10 @@ def on_grename_change(idx, token_display_map=None):
     token_display_map: dict {display_label -> raw_token} passed from ui.py.
     Widget keys hold display labels; entry["speakers"] must hold raw tokens.
     """
+    # Guard: the entry may have been deleted (e.g. trash button fired just
+    # before Streamlit re-fired this multiselect callback for the same index).
+    if idx >= len(st.session_state.globalRenames):
+        return
     grkey = _global_rename_key(idx)
     entry = st.session_state.globalRenames[idx]
     name  = entry["name"]