diff --git a/packages/tasks/src/fake.mjs b/packages/tasks/src/fake.mjs
index 633224db8..57314be46 100644
--- a/packages/tasks/src/fake.mjs
+++ b/packages/tasks/src/fake.mjs
@@ -138,7 +138,8 @@ export class FakeVikunja {
     for (const id of gone) this.#projects.delete(id);
   }
   // Drops a view, its buckets and the tasks' places in them. The project still reads, and a read
-  // of the view answers 404 with code 13001.
+  // of the view answers 404 with code 3014, as tasks.woltje.com v2.7.0 does (Sage's live probe,
+  // agents/sage/work/vikunja-setup/2026-10-11_tick-62.json, deletedViewProbe).
   deleteView(view) {
     for (const [id, b] of this.#buckets) if (b.view === view) this.#buckets.delete(id);
     for (const t of this.#tasks.values()) t.buckets.delete(view);
@@ -473,14 +474,14 @@ export class FakeVikunja {
   _buckets(user, [p, k], q) {
     const r = this.#projectFor(user, p);
     if (r.error) return r.error;
-    if (this.#views.get(k)?.project !== p) return { status: 404, body: { title: 'Not Found', status: 404, detail: 'This project view does not exist.', code: 13001 } };
+    if (this.#views.get(k)?.project !== p) return { status: 404, body: { title: 'Not Found', status: 404, detail: 'This project view does not exist.', code: 3014 } };
     return { status: 200, body: page([...this.#buckets.values()].filter((b) => b.view === k).map((b) => this.#bucketJson(b)), q) };
   }
   _board(user, [p, k], q) {
     const r = this.#projectFor(user, p);
     if (r.error) return r.error;
     const v = this.#views.get(k);
-    if (v?.project !== p) return { status: 404, body: { title: 'Not Found', status: 404, detail: 'This project view does not exist.', code: 13001 } };
+    if (v?.project !== p) return { status: 404, body: { title: 'Not Found', status: 404, detail: 'This project view does not exist.', code: 3014 } };
     const f = q.get('filter') ?? '';
     if (f && f !== 'done = false') return { status: 400, body: bad('unsupported filter in the fake') };
     const per = Math.min(Number(q.get('per_page')) || 50, 50),
diff --git a/packages/tasks/tests/tree.test.mjs b/packages/tasks/tests/tree.test.mjs
index 5ac99ae51..e325be398 100644
--- a/packages/tasks/tests/tree.test.mjs
+++ b/packages/tasks/tests/tree.test.mjs
@@ -430,8 +430,8 @@ test('a child whose kanban view is deleted still refuses the tick, and the recon
   const rootTask = await add(w, w.project, 'root');
   await ready(w);
   const rows = () => w.store.get('SELECT (SELECT count(*) FROM events) + (SELECT count(*) FROM task_snapshots) n').n;
-  // The board answers 404 with code 13001, and the project still reads, so the child hasn't left
-  // the tree. The tick reads the project, fails, and writes nothing, not even the root's edit.
+  // The board answers 404 with code 3014 (the live v2.7.0 answer, tick-62 record), and the project
+  // still reads, so the child hasn't left the tree. The tick reads the project, fails, and writes nothing, not even the root's edit.
   w.fake.deleteView(w.fake.kanban(child).id);
   await w.ui('PATCH', `/tasks/${rootTask}`, { title: 'root renamed' });
   await sleep(20);
@@ -459,6 +459,17 @@ test('a child whose kanban view is deleted still refuses the tick, and the recon
   w.fake.fault('GET', new RegExp(`^/projects/${child}/tasks$`), 404);
   w.fake.fault('GET', new RegExp(`^/projects/${child}$`), 503);
   await assert.rejects(w.adapter.tick('demo'), { code: 'tracker-not-found' });
+  // The confirm read answers another 4xx: the tick still refuses, and the child stays.
+  w.fake.fault('GET', new RegExp(`^/projects/${child}/tasks$`), 404);
+  w.fake.fault('GET', new RegExp(`^/projects/${child}$`), 429);
+  await assert.rejects(w.adapter.tick('demo'), { code: 'tracker-not-found' });
+  w.fake.fault('GET', new RegExp(`^/projects/${child}/tasks$`), 404);
+  w.fake.fault('GET', new RegExp(`^/projects/${child}$`), 401);
+  await assert.rejects(w.adapter.tick('demo'), { code: 'tracker-not-found' });
+  // The confirm read's call fails (status 0, which the client returns for a thrown fetch): the tick refuses.
+  w.fake.fault('GET', new RegExp(`^/projects/${child}/tasks$`), 404);
+  w.fake.fault('GET', new RegExp(`^/projects/${child}$`), 0);
+  await assert.rejects(w.adapter.tick('demo'), { code: 'tracker-not-found' });
   await w.ui('PATCH', `/tasks/${task}`, { title: 'child renamed' });
   await sleep(20);
   await w.adapter.tick('demo');