diff --git a/cmd/orchestra-worker/main.go b/cmd/orchestra-worker/main.go
index 3bbc732..b7aef84 100644
--- a/cmd/orchestra-worker/main.go
+++ b/cmd/orchestra-worker/main.go
@@ -1280,6 +1280,16 @@ func (w *worker) reconcileLeases(ctx context.Context) error {
 		}
 	}
 	for taskID, l := range active {
+		// The coordinator is authoritative for the lease, not for what this
+		// worker has observed under it. Rebuilding the struct wholesale wiped
+		// every worker-local field each tick, which silently disabled the
+		// renewal progress check and reset the usage baseline. Carry them
+		// across, but only while the epoch is the same lease.
+		if prev, ok := w.leases[taskID]; ok && prev.Epoch == l.Epoch {
+			l.ProgressSHA = prev.ProgressSHA
+			l.UsageBaseline = prev.UsageBaseline
+			l.PickupAcknowledged = prev.PickupAcknowledged
+		}
 		w.leases[taskID] = l
 	}
 	return nil
diff --git a/cmd/orchestra-worker/main_test.go b/cmd/orchestra-worker/main_test.go
index f52824d..d91955f 100644
--- a/cmd/orchestra-worker/main_test.go
+++ b/cmd/orchestra-worker/main_test.go
@@ -871,3 +871,47 @@ func TestInlineTransportSubmitsTheWholeInstruction(t *testing.T) {
 		t.Fatalf("submitted %q, want the whole instruction", backend.prompts)
 	}
 }
+
+// Found live during burn-in run 3: reconcileLeases rebuilt each lease from the
+// coordinator's view every tick, which wiped ProgressSHA and made the renewal
+// progress check renew unconditionally on its no-baseline branch. The fix in
+// isolation is worthless if the live call path resets its input.
+func TestReconcileLeasesKeepsWorkerLocalObservations(t *testing.T) {
+	until := time.Now().Add(30 * time.Minute)
+	epoch := "epoch-1"
+	api := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+		rw.Write(mustJSON([]domain.Task{{
+			ID: "task", State: domain.StateLeased, Version: 12,
+			Lease: &domain.Lease{HarnessID: "h", Epoch: epoch, Until: until},
+		}}))
+	}))
+	defer api.Close()
+	w := &worker{
+		api:       federation.Client{BaseURL: api.URL, WorkerID: "h", Token: "t"},
+		harnessID: "h",
+		tasks:     map[string]domain.Task{},
+		leases:    map[string]lease{"task": {Epoch: "epoch-1", Version: 11, ProgressSHA: "sha-1", UsageBaseline: 0.25, PickupAcknowledged: true}},
+		statePath: filepath.Join(t.TempDir(), "state.json"),
+	}
+	if err := w.reconcileLeases(context.Background()); err != nil {
+		t.Fatal(err)
+	}
+	got := w.leases["task"]
+	if got.ProgressSHA != "sha-1" || got.UsageBaseline != 0.25 || !got.PickupAcknowledged {
+		t.Fatalf("reconcile dropped worker-local observations: %+v", got)
+	}
+	if got.Version != 12 {
+		t.Fatalf("version=%d, want the coordinator's 12", got.Version)
+	}
+
+	// A different epoch is a different lease. Nothing observed under the old
+	// one may carry into it.
+	epoch = "epoch-2"
+	if err := w.reconcileLeases(context.Background()); err != nil {
+		t.Fatal(err)
+	}
+	got = w.leases["task"]
+	if got.ProgressSHA != "" || got.UsageBaseline != 0 || got.PickupAcknowledged {
+		t.Fatalf("observations survived a new epoch: %+v", got)
+	}
+}