diff --git a/projects/ops-desk/frontend/assets/agentic-ops.js b/projects/ops-desk/frontend/assets/agentic-ops.js
index 334f6ac..062294c 100644
--- a/projects/ops-desk/frontend/assets/agentic-ops.js
+++ b/projects/ops-desk/frontend/assets/agentic-ops.js
@@ -273,6 +273,16 @@
     return { list, openAgents, counts, filtered, bySev, sel };
   }
 
+  function incidentsFingerprint(data) {
+    return (data.incidents?.incidents || [])
+      .map((i) => `${i.id}:${i.status}:${i.severity}:${i.last_seen_at || ''}`)
+      .join('|');
+  }
+
+  function timelineFingerprint(timeline) {
+    return JSON.stringify(timeline?.ticks || []);
+  }
+
   function agentStatus(id, openAgents) {
     if (openAgents.has(id)) return { cls: 'ao-squad-status--alert', label: 'alerta' };
     if (state.selectedAgent === id) return { cls: 'ao-squad-status--active', label: 'activo' };
@@ -691,18 +701,36 @@
     patchHtml(el.querySelector('#ao-pane-activity'), activityFeedHtml());
   }
 
-  function patchDashboard(el, data) {
+  function patchDashboard(el, data, opts = {}) {
+    const { soft = false } = opts;
     const view = deriveView(data);
     const open = data.overview.incidents_open || {};
     const dot = el.querySelector('#ao-live-dot');
     if (dot) dot.className = `ao-live-dot ${liveDotClass(open)}`.trim();
 
     patchHtml(el.querySelector('#ao-stat-chips'), chipsHtml(data.overview, open));
-    patchHtml(el.querySelector('#ao-subnav'), subnavHtml());
-    patchHtml(el.querySelector('#ao-squad-grid'), squadHtml(data, view));
-    patchHtml(el.querySelector('#ao-kanban'), kanbanHtml(view));
-    patchHtml(el.querySelector('#ao-timeline'), timelineHtml(data.timeline));
-    patchHtml(el.querySelector('#ao-task-board'), taskBoardHtml(data));
+
+    const incFp = incidentsFingerprint(data);
+    const tickFp = timelineFingerprint(data.timeline);
+    const boardChanged = !soft || incFp !== state._aoIncidentsFp;
+    const timelineChanged = !soft || tickFp !== state._aoTimelineFp;
+
+    if (boardChanged) {
+      patchHtml(el.querySelector('#ao-subnav'), subnavHtml());
+      patchHtml(el.querySelector('#ao-squad-grid'), squadHtml(data, view));
+      patchHtml(el.querySelector('#ao-kanban'), kanbanHtml(view));
+      state._aoIncidentsFp = incFp;
+    }
+
+    if (timelineChanged) {
+      patchHtml(el.querySelector('#ao-timeline'), timelineHtml(data.timeline));
+      state._aoTimelineFp = tickFp;
+    }
+
+    if (!soft) {
+      patchHtml(el.querySelector('#ao-task-board'), taskBoardHtml(data));
+      patchSubViewPanes(el, data);
+    }
 
     const boardLabel = el.querySelector('#ao-board-label');
     if (boardLabel) {
@@ -711,8 +739,9 @@
         : 'Mission Board';
     }
 
-    patchSubViewPanes(el, data);
-    updateSubViews(el);
+    if (!soft) {
+      updateSubViews(el);
+    }
     updateMainTabs(el);
     updateCommsChrome(el, view.sel);
     updateMobileTabs(el);
@@ -1215,7 +1244,7 @@
         bindEventsOnce(el);
       }
 
-      const view = patchDashboard(el, data);
+      const view = patchDashboard(el, data, { soft });
       if (saved) restoreInputs(el, saved);
 
       if (state.threadId && state.chatModalOpen) {
diff --git a/projects/ops-desk/frontend/assets/app.js b/projects/ops-desk/frontend/assets/app.js
index 5e0d8f1..29b585d 100644
--- a/projects/ops-desk/frontend/assets/app.js
+++ b/projects/ops-desk/frontend/assets/app.js
@@ -286,21 +286,38 @@ function reschedulePoll() {
 
 async function loadHealth() {
   const el = document.getElementById('global-health');
+  if (!el) return null;
   try {
-    const h = await api('/health');
-    el.className = 'status-pill ok';
-    el.innerHTML = '<span class="dot"></span> API online';
-    return h;
+    await api('/health');
+    const html = '<span class="dot"></span> API online';
+    if (!el.classList.contains('ok') || el.innerHTML !== html) {
+      el.className = 'status-pill ok';
+      el.innerHTML = html;
+    }
+    return true;
   } catch {
-    el.className = 'status-pill err';
-    el.innerHTML = '<span class="dot"></span> API offline';
+    const html = '<span class="dot"></span> API offline';
+    if (!el.classList.contains('err') || el.innerHTML !== html) {
+      el.className = 'status-pill err';
+      el.innerHTML = html;
+    }
     return null;
   }
 }
 
-async function renderDashboard() {
+/** Evita flash "Carregando…" quando o poll refresca uma vista já montada */
+function viewHasContent(el, selector) {
+  return Boolean(el?.querySelector(selector));
+}
+
+async function renderDashboard(options = {}) {
+  const { poll = false } = options;
   const box = document.getElementById('dashboard-content');
-  box.innerHTML = '<p class="loading">Carregando…</p>';
+  if (!viewHasContent(box, '.dashboard-top')) {
+    box.innerHTML = '<p class="loading">Carregando…</p>';
+  } else if (poll) {
+    box.classList.add('view--refreshing');
+  }
   try {
     const leadsPromise = canReadLeads()
       ? api('/v1/crm/leads').catch(() => ({ leads: [], total: 0 }))
@@ -425,10 +442,10 @@ async function renderDashboard() {
     });
   } catch (e) {
     box.innerHTML = `<p class="loading">Erro: ${esc(e.message)}</p>`;
+  } finally {
+    box?.classList.remove('view--refreshing');
   }
 }
-
-function sourceBadge(src) {
   if (src === 'desk-registration') return '<span class="badge onboard">desk</span>';
   if (src === 'wazuh') return '<span class="badge wazuh">wazuh</span>';
   if (src === 'vm112-onboard') return '<span class="badge onboard">onboard</span>';
@@ -1713,9 +1730,14 @@ async function openUserAccessModal() {
   }
 }
 
-async function renderOverview() {
+async function renderOverview(options = {}) {
+  const { poll = false } = options;
   const el = document.getElementById('overview-content');
-  el.innerHTML = '<p class="loading">Carregando overview…</p>';
+  if (!viewHasContent(el, '.health-grid')) {
+    el.innerHTML = '<p class="loading">Carregando overview…</p>';
+  } else if (poll) {
+    el.classList.add('view--refreshing');
+  }
   try {
     const secPromise = window.DeskModules?.isEnabled('wizard-security')
       ? api('/v1/security/summary?window_hours=24').catch(() => null)
@@ -1766,6 +1788,8 @@ async function renderOverview() {
     });
   } catch (e) {
     el.innerHTML = `<p class="loading">Erro: ${esc(e.message)}</p>`;
+  } finally {
+    el?.classList.remove('view--refreshing');
   }
 }
 
@@ -1883,13 +1907,18 @@ async function renderOverviewHome(options = {}) {
   el.innerHTML = '<p class="loading">Módulo Serviços não carregado.</p>';
 }
 
-async function renderLeads() {
+async function renderLeads(options = {}) {
+  const { poll = false } = options;
   const el = document.getElementById('leads-content');
   if (!canReadLeads()) {
     el.innerHTML = '<p class="loading">Sem permissão para ver leads</p>';
     return;
   }
-  el.innerHTML = '<p class="loading">Carregando leads…</p>';
+  if (!viewHasContent(el, '.lead-grid')) {
+    el.innerHTML = '<p class="loading">Carregando leads…</p>';
+  } else if (poll) {
+    el.classList.add('view--refreshing');
+  }
   try {
     const data = await api('/v1/crm/leads');
     const leads = data.leads || [];
@@ -1916,6 +1945,8 @@ async function renderLeads() {
     });
   } catch (e) {
     el.innerHTML = `<p class="loading">Erro: ${esc(e.message)}</p>`;
+  } finally {
+    el?.classList.remove('view--refreshing');
   }
 }
 
@@ -2111,7 +2142,8 @@ async function updateTicketStatus(status) {
   await renderTickets();
 }
 
-async function renderEvents() {
+async function renderEvents(options = {}) {
+  const { poll = false } = options;
   syncEventsToolbar();
   if (state.eventsTab === 'purges') {
     await renderPurgeHistory();
@@ -2126,7 +2158,11 @@ async function renderEvents() {
     return;
   }
   const el = document.getElementById('events-content');
-  el.innerHTML = '<p class="loading">Carregando eventos…</p>';
+  if (!viewHasContent(el, '.table-wrap')) {
+    el.innerHTML = '<p class="loading">Carregando eventos…</p>';
+  } else if (poll) {
+    el.classList.add('view--refreshing');
+  }
   try {
     const srcQ = state.eventSourceFilter !== 'all' ? `?source=${state.eventSourceFilter}` : '';
     const data = await api(`/v1/webhooks/events${srcQ}`);
@@ -2151,6 +2187,8 @@ async function renderEvents() {
       </div>`;
   } catch (e) {
     el.innerHTML = `<p class="loading">Erro: ${esc(e.message)}</p>`;
+  } finally {
+    el?.classList.remove('view--refreshing');
   }
 }
 
@@ -4110,9 +4148,14 @@ function openInfraProcessDetail(procId) {
   }
 }
 
-async function renderInfra() {
+async function renderInfra(options = {}) {
+  const { poll = false } = options;
   const el = document.getElementById('infra-content');
-  el.innerHTML = '<p class="loading">Verificando stack…</p>';
+  if (!viewHasContent(el, '.infra-vm-section')) {
+    el.innerHTML = '<p class="loading">Verificando stack…</p>';
+  } else if (poll) {
+    el.classList.add('view--refreshing');
+  }
   try {
     const [stack, integrations, health, vm123Health, purgeMeta] = await Promise.all([
       api('/v1/infra/stack/status'),
@@ -4169,10 +4212,12 @@ async function renderInfra() {
         ${sections}
         ${integrationsCard ? `<section class="infra-vm-section"><h3 class="infra-vm-head">Integrações · Desk API</h3><div class="proc-grid">${integrationsCard}</div></section>` : ''}
       </div>`;
-    document.getElementById('btn-infra-refresh-stack')?.addEventListener('click', () => renderInfra());
+    document.getElementById('btn-infra-refresh-stack')?.addEventListener('click', () => renderInfra({ force: true }));
     bindStackCardActions(el);
   } catch (e) {
     el.innerHTML = `<p class="loading">Erro: ${esc(e.message)}</p>`;
+  } finally {
+    el?.classList.remove('view--refreshing');
   }
 }
 
@@ -4284,20 +4329,25 @@ async function refresh(options = {}) {
   if (poll && state.view === 'account') {
     return;
   }
-  if (state.view === 'dashboard') await renderDashboard();
+  // Agentic Ops tem poll próprio — evita duplo refresh e flash "Carregando…"
+  if (poll && state.view === 'agentic-ops') {
+    return;
+  }
+  const p = poll ? { poll: true } : {};
+  if (state.view === 'dashboard') await renderDashboard(p);
   if (state.view === 'email-migration' && window.DeskEmailMigration?.renderPage) await window.DeskEmailMigration.renderPage();
-  if (state.view === 'overview') await renderOverview();
+  if (state.view === 'overview') await renderOverview(p);
   if (state.view === 'overview-home') await renderOverviewHome({ poll });
-  if (state.view === 'leads') await renderLeads();
+  if (state.view === 'leads') await renderLeads(p);
   if (state.view === 'tickets') {
     if (poll && window.TicketsWorkspace?._pageReady) await TicketsWorkspace.softRefresh();
     else await renderTickets({ poll: false });
   }
-  if (state.view === 'events') await renderEvents();
+  if (state.view === 'events') await renderEvents(p);
   if (state.view === 'tenants') await renderTenants();
-  if (state.view === 'infra') await renderInfra();
+  if (state.view === 'infra') await renderInfra(p);
   if (state.view === 'infra2') await renderInfra2({ poll });
-  if (state.view === 'agentic-ops' && window.renderAgenticOps) await window.renderAgenticOps();
+  if (state.view === 'agentic-ops' && window.renderAgenticOps) await window.renderAgenticOps(p);
   if (state.view === 'messages') await renderMessages();
   if (state.view === 'admin') await renderAdmin();
   if (state.view === 'access-matrix' && window.renderAccessMatrix) await window.renderAccessMatrix();
diff --git a/projects/ops-desk/frontend/assets/styles.css b/projects/ops-desk/frontend/assets/styles.css
index d7bb23c..923a844 100644
--- a/projects/ops-desk/frontend/assets/styles.css
+++ b/projects/ops-desk/frontend/assets/styles.css
@@ -1302,6 +1302,13 @@ th { color: var(--muted); font-weight: 600; font-size: 0.75rem; text-transform:
 .hidden { display: none !important; }
 .loading { color: var(--muted); font-size: 0.9rem; padding: 1rem; }
 
+/* Poll suave — sem flash "Carregando…" */
+.view--refreshing {
+  opacity: 0.94;
+  transition: opacity 0.25s ease;
+  pointer-events: none;
+}
+
 .infra-card {
   display: flex;
   align-items: center;
diff --git a/projects/ops-desk/frontend/index.html b/projects/ops-desk/frontend/index.html
index 5b7fbe0..d54d6e3 100644
--- a/projects/ops-desk/frontend/index.html
+++ b/projects/ops-desk/frontend/index.html
@@ -4,7 +4,7 @@
   <meta charset="UTF-8"/>
   <meta name="viewport" content="width=device-width, initial-scale=1"/>
   <title>Ligbox Ops — Support Desk</title>
-  <link rel="stylesheet" href="/assets/styles.css?v=20260625socfix"/>
+  <link rel="stylesheet" href="/assets/styles.css?v=20260625pollfix"/>
   <link rel="stylesheet" href="/assets/tickets-workspace.css?v=20260619tickets2"/>
   <link rel="stylesheet" href="/assets/agentic-ops.css?v=20260620v10"/>
   <link rel="stylesheet" href="/assets/access-matrix.css?v=20260620am7"/>
@@ -474,8 +474,8 @@
   <script src="/assets/tickets-workspace.js?v=20260619tickets2"></script>
   <script src="/assets/tickets-detail-panel.js?v=20260619tickets2"></script>
   <script src="/assets/servicos.js?v=20260620agentic"></script>
-  <script src="/assets/agentic-ops.js?v=20260620v10"></script>
+  <script src="/assets/agentic-ops.js?v=20260625pollfix"></script>
   <script src="/assets/access-matrix.js?v=20260620am7"></script>
-  <script src="/assets/app.js?v=20260625socfix"></script>
+  <script src="/assets/app.js?v=20260625pollfix"></script>
 </body>
 </html>