Fix a bug with custom role

state.py

@@ -68,19 +68,11 @@ def init_session_state():
 # ---------------------------------------------------------------------------
 
 def get_display_name(speaker, fileName):
-    """Return the best display name for a speaker, in priority order:
-    1. Explicit rename (speakerRenames) — set by rename sidebar or rename tab
-    2. Role assignment (categorySelect) — e.g. "Instructor" or "Students"
-    3. Original raw label — e.g. "SPEAKER_00"
+    """Return the user-assigned display name for a speaker, or the original label.
+    Role assignments (categorySelect) are intentionally excluded — roles are for
+    grouping in charts, not for renaming speakers.
     """
-    explicit = st.session_state.speakerRenames.get(fileName, {}).get(speaker)
-    if explicit:
-        return explicit
-    token = f"{fileName}: {speaker}"
-    for i, tokens in enumerate(st.session_state.categorySelect):
-        if token in tokens:
-            return st.session_state.categories[i]
-    return speaker
+    return st.session_state.speakerRenames.get(fileName, {}).get(speaker, speaker)
 
 
 def apply_speaker_renames_to_df(df, fileName, column="task"):