diff --git a/test/integration/whole-mesh-full.test.ts b/test/integration/whole-mesh-full.test.ts
index 1d12af0..875f521 100644
--- a/test/integration/whole-mesh-full.test.ts
+++ b/test/integration/whole-mesh-full.test.ts
@@ -270,8 +270,17 @@ const PLAN: { node: string; mods: Mod[]; core: Set<string>; gaps: Set<string> }[
  * runs. The rest break the novox web/app host-port collisions (route-proxy fronts 80/443).
  */
 const REMAP: Record<string, Record<string, string>> = {
-  postgres: { "5432": "127.0.0.1:15432:5432" },
-  lavinmq: { "5672": "127.0.0.1:15673:5672" },
+  // Moved, NOT bound to loopback. These two carried `127.0.0.1:` and it broke a consumer on a node
+  // with no substrate at all: a module is told to reach its provider at `<node>.internal`, that
+  // name resolves to the node's overlay address, and a provider listening only on loopback refuses
+  // it. letta on ace died of exactly this — "is the server running on that host and accepting
+  // TCP/IP connections?" — while postgres sat healthy beside it.
+  //
+  // The collision needed a different PORT, which is all the other entries here do. The address was
+  // never part of it, and adding it made the provider unreachable by the one name the mesh hands
+  // its consumers.
+  postgres: { "5432": "15432:5432" },
+  lavinmq: { "5672": "15673:5672" },
   nextcloud: { "80": "8090:80" },
   umami: { "3000": "3090:3000" },
   invoicing: { "80": "8091:80", "9000": "9091:9000" },