Index references are not applicable, only label

src/aces/config.py

@@ -1270,10 +1270,8 @@ def load(cls, config_path: str | Path, predicates_path: str | Path = None) -> Ta
         referenced_predicates = {pred for w in windows.values() for pred in w.referenced_predicates}
         referenced_predicates.add(trigger.predicate)
         label_reference = [w.label for w in windows.values() if w.label]
-        index_reference = [w.index_timestamp for w in windows.values() if w.index_timestamp]
-        if label_reference or index_reference:
-            other_references = set(label_reference + index_reference)
-            referenced_predicates.update(other_references)
+        if label_reference:
+            referenced_predicates.update(set(label_reference))
         current_predicates = set(referenced_predicates)
         special_predicates = {ANY_EVENT_COLUMN, START_OF_RECORD_KEY, END_OF_RECORD_KEY}
         for pred in current_predicates - special_predicates: