diff --git a/app/components/catalog/CatalogConfigurator.vue b/app/components/catalog/CatalogConfigurator.vue
index 2fb4406..ef4de30 100644
--- a/app/components/catalog/CatalogConfigurator.vue
+++ b/app/components/catalog/CatalogConfigurator.vue
@@ -266,8 +266,15 @@ watch(
   { immediate: true },
 );
 
-function getGroupState(group: ProductGroup) {
-  return groupStates[group.key];
+function getGroupState(group: ProductGroup): GroupState {
+  const existing = groupStates[group.key];
+  if (existing) {
+    return existing;
+  }
+
+  const created = createGroupState(group);
+  groupStates[group.key] = created;
+  return created;
 }
 
 function updateField(group: ProductGroup, field: ParamFieldKey, value: ParamValue) {