Update app.py via AI Editor

app.py

@@ -95,7 +95,7 @@ def markdown_table_to_df(md_table):
 
 def markdown_table_preview(md_text):
     if not md_text:
-        return html.Div()  # Always return a preview area, but empty if no text
+        return html.Div()
     tables = extract_markdown_tables(md_text)
     if not tables:
         return html.Div()
@@ -547,8 +547,10 @@ def combined_callback(
         else:
             preview = markdown_narrative_preview(generated_doc)
         logging.info("Document preview updated.")
-        return dash.no_update, dash.no_update, preview, "", generated_doc
+        # Always update document-preview, even if file-list/store-shred do not change
+        return files_display, new_shred, preview, "", generated_doc
 
+    # Always show preview for current shred if nothing else triggered
     return files_display, new_shred, markdown_table_preview(new_shred), loading_msg, generated_doc
 
 @app.callback(