try to set namespace for dependsOn

flux2/core/base/nginx/release.yaml

@@ -19,7 +19,8 @@ spec:
       retries: 3
     timeout: 9m
   dependsOn:
-    - name: kube-system/metallb
+    - name: metallb
+      namespace: kube-system
   values:
     controller:
       image: