diff --git a/src/dve/core_engine/backends/base/rules.py b/src/dve/core_engine/backends/base/rules.py
index 2471426..d4937c5 100644
--- a/src/dve/core_engine/backends/base/rules.py
+++ b/src/dve/core_engine/backends/base/rules.py
@@ -500,7 +500,9 @@ def process_node(node: HierarchyNode) -> bool:
         for tree in entity_hierarchy.entity_trees.values():
             for node in tree.iterate_lowest_descendent_up():
                 if node.parent_entity and node.mandatory:
-                    entity_issues_found[node.parent_entity] = process_node(node)
+                    result = process_node(node)
+                    if result and not entity_issues_found.get(node.parent_entity):
+                        entity_issues_found[node.parent_entity] = result
 
         return [], entity_issues_found