diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35b5bdcad66..2c8098c0578 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -118,6 +118,7 @@ Docs: https://docs.openclaw.ai
 - Gateway/config validation: stop treating the implicit default memory slot as a required explicit plugin config, so startup no longer fails with `plugins.slots.memory: plugin not found: memory-core` when `memory-core` was only inferred. (#47494) Thanks @ngutman.
 - Tlon: honor explicit empty allowlists and defer cite expansion. (#46788) Thanks @zpbrent and @vincentkoc.
 - Tlon/DM auth: defer cited-message expansion until after DM authorization and owner command handling, so unauthorized DMs and owner approval/admin commands no longer trigger cross-channel cite fetches before the deny or command path.
+- Gateway/agent events: stop broadcasting false end-of-run `seq gap` errors to clients, and isolate node-driven ingress turns with per-turn run IDs so stale tail events cannot leak into later session runs. (#43751) Thanks @caesargattuso.
 - Docs/security audit: spell out that `gateway.controlUi.allowedOrigins: ["*"]` is an explicit allow-all browser-origin policy and should be avoided outside tightly controlled local testing.
 - Gateway/auth: clear self-declared scopes for device-less trusted-proxy Control UI sessions so proxy-authenticated connects cannot claim admin or secrets scopes without a bound device identity.
 - Nodes/pending actions: re-check queued foreground actions against the current node command policy before returning them to the node. (#46815) Thanks @zpbrent and @vincentkoc.
diff --git a/src/gateway/server-chat.agent-events.test.ts b/src/gateway/server-chat.agent-events.test.ts
index 72eb09c8643..dd644955afc 100644
--- a/src/gateway/server-chat.agent-events.test.ts
+++ b/src/gateway/server-chat.agent-events.test.ts
@@ -487,6 +487,46 @@ describe("agent event handler", () => {
     nowSpy?.mockRestore();
   });
 
+  it("drops stale events that arrive after lifecycle completion", () => {
+    const { broadcast, nodeSendToSession, chatRunState, handler, nowSpy } = createHarness({
+      now: 2_500,
+    });
+    chatRunState.registry.add("run-stale-tail", {
+      sessionKey: "session-stale-tail",
+      clientRunId: "client-stale-tail",
+    });
+
+    handler({
+      runId: "run-stale-tail",
+      seq: 1,
+      stream: "assistant",
+      ts: Date.now(),
+      data: { text: "done" },
+    });
+    emitLifecycleEnd(handler, "run-stale-tail");
+    const errorCallsBeforeStaleEvent = broadcast.mock.calls.filter(
+      ([event, payload]) =>
+        event === "agent" && (payload as { stream?: string }).stream === "error",
+    ).length;
+    const sessionChatCallsBeforeStaleEvent = sessionChatCalls(nodeSendToSession).length;
+
+    handler({
+      runId: "run-stale-tail",
+      seq: 3,
+      stream: "assistant",
+      ts: Date.now(),
+      data: { text: "late tail" },
+    });
+
+    const errorCalls = broadcast.mock.calls.filter(
+      ([event, payload]) =>
+        event === "agent" && (payload as { stream?: string }).stream === "error",
+    );
+    expect(errorCalls).toHaveLength(errorCallsBeforeStaleEvent);
+    expect(sessionChatCalls(nodeSendToSession)).toHaveLength(sessionChatCallsBeforeStaleEvent);
+    nowSpy?.mockRestore();
+  });
+
   it("flushes buffered chat delta before tool start events", () => {
     let now = 12_000;
     const nowSpy = vi.spyOn(Date, "now").mockImplementation(() => now);
diff --git a/src/gateway/server-chat.ts b/src/gateway/server-chat.ts
index 0579f4083c0..7fda61b6c0c 100644
--- a/src/gateway/server-chat.ts
+++ b/src/gateway/server-chat.ts
@@ -710,7 +710,7 @@ export function createAgentEventHandler({
               : { ...eventForClients, data };
           })()
         : agentPayload;
-    if (evt.seq !== last + 1) {
+    if (last > 0 && evt.seq !== last + 1) {
       broadcast("agent", {
         runId: eventRunId,
         stream: "error",
diff --git a/src/gateway/server-node-events.test.ts b/src/gateway/server-node-events.test.ts
index a5a7578ddbc..dbf1bde579f 100644
--- a/src/gateway/server-node-events.test.ts
+++ b/src/gateway/server-node-events.test.ts
@@ -410,7 +410,9 @@ describe("voice transcript events", () => {
   });
 
   it("forwards transcript with voice provenance", async () => {
+    const addChatRun = vi.fn();
     const ctx = buildCtx();
+    ctx.addChatRun = addChatRun;
 
     await handleNodeEvent(ctx, "node-v2", {
       event: "voice.transcript",
@@ -432,6 +434,12 @@ describe("voice transcript events", () => {
         sourceTool: "gateway.voice.transcript",
       },
     });
+    expect(typeof opts.runId).toBe("string");
+    expect(opts.runId).not.toBe(opts.sessionId);
+    expect(addChatRun).toHaveBeenCalledWith(
+      opts.runId,
+      expect.objectContaining({ clientRunId: expect.stringMatching(/^voice-/) }),
+    );
   });
 
   it("does not block agent dispatch when session-store touch fails", async () => {
@@ -674,5 +682,6 @@ describe("agent request events", () => {
       channel: "telegram",
       to: "123",
     });
+    expect(opts.runId).toBe(opts.sessionId);
   });
 });
diff --git a/src/gateway/server-node-events.ts b/src/gateway/server-node-events.ts
index c2aa3c454c7..2e9e911725a 100644
--- a/src/gateway/server-node-events.ts
+++ b/src/gateway/server-node-events.ts
@@ -288,16 +288,18 @@ export const handleNodeEvent = async (ctx: NodeEventContext, nodeId: string, evt
         sessionId,
         now,
       });
+      const runId = randomUUID();
 
       // Ensure chat UI clients refresh when this run completes (even though it wasn't started via chat.send).
-      // This maps agent bus events (keyed by sessionId) to chat events (keyed by clientRunId).
-      ctx.addChatRun(sessionId, {
+      // This maps agent bus events (keyed by per-turn runId) to chat events (keyed by clientRunId).
+      ctx.addChatRun(runId, {
         sessionKey: canonicalKey,
         clientRunId: `voice-${randomUUID()}`,
       });
 
       void agentCommandFromIngress(
         {
+          runId,
           message: text,
           sessionId,
           sessionKey: canonicalKey,
@@ -404,7 +406,6 @@ export const handleNodeEvent = async (ctx: NodeEventContext, nodeId: string, evt
       const deliver = deliverRequested && Boolean(channel && to);
       const deliveryChannel = deliver ? channel : undefined;
       const deliveryTo = deliver ? to : undefined;
-
       if (deliverRequested && !deliver) {
         ctx.logGateway.warn(
           `agent delivery disabled node=${nodeId}: missing session delivery route (channel=${channel ?? "-"} to=${to ?? "-"})`,
@@ -430,6 +431,7 @@ export const handleNodeEvent = async (ctx: NodeEventContext, nodeId: string, evt
 
       void agentCommandFromIngress(
         {
+          runId: sessionId,
           message,
           images,
           sessionId,