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TUI.py

@@ -889,15 +889,30 @@ class PipelineHubApp(App):
             return
         self.results_table.clear(columns=True)
 
-        if self.current_result_table and self.current_result_table.rows:
-            # Use ResultTable headers from the first row
-            first_row = self.current_result_table.rows[0]
-            headers = ["#"] + [col.name for col in first_row.columns]
+        if self.current_result_table:
+            # Determine headers - prefer actual rows if present
+            headers = ["#"]
+            if self.current_result_table.rows:
+                first_row = self.current_result_table.rows[0]
+                headers += [col.name for col in first_row.columns]
+            else:
+                # Fallback headers for empty but known table types
+                title = str(getattr(self.current_result_table, "title", "") or "").strip()
+                if title == "Tags":
+                    headers += ["Tag", "Store"]
+                elif title == "Metadata" or "metadata" in title.lower():
+                    headers += ["Field", "Value"]
+                elif title == "URLs":
+                    headers += ["URL", "Type"]
+                else:
+                    headers += ["Result"] # Generic fallback
+            
             self.results_table.add_columns(*headers)
 
-            rows = self.current_result_table.to_datatable_rows()
-            for idx, row_values in enumerate(rows, 1):
-                self.results_table.add_row(str(idx), *row_values, key=str(idx - 1))
+            if self.current_result_table.rows:
+                rows = self.current_result_table.to_datatable_rows()
+                for idx, row_values in enumerate(rows, 1):
+                    self.results_table.add_row(str(idx), *row_values, key=str(idx - 1))
         else:
             # Fallback or empty state
             self.results_table.add_columns("Row", "Title", "Source", "File")