diff --git a/frontend/assets/js/app.js b/frontend/assets/js/app.js
index d28e22c..caf7347 100644
--- a/frontend/assets/js/app.js
+++ b/frontend/assets/js/app.js
@@ -280,6 +280,7 @@ async function loadTeams() {
 
 async function loadEvents() {
     events = await apiFetch('events');
+    syncHashes.events = JSON.stringify(events);
     loadAllTags();
     renderTimeline();
 }
@@ -1209,7 +1210,7 @@ function setupCanvasDrop() {
         } else {
             await apiFetch('nodes', { method: 'POST', body: JSON.stringify({
                 label: data.charAt(0).toUpperCase() + data.slice(1),
-                ip_address: '', node_type: data, status: 'unknown',
+                ip_address: '', node_type: data || 'host', status: 'unknown',
                 group_name: 'default', notes: '',
                 pos_x: mx, pos_y: my
             })});
@@ -1218,25 +1219,46 @@ function setupCanvasDrop() {
     });
 }
 
-// Real-time sync: poll backend every 5 seconds only when network tab is visible
+// Real-time sync: poll backend every 5 seconds for all data
 let syncInterval = null;
-let lastSyncData = null;
+let syncHashes = { events: null, documents: null, network: null };
 
 function startSync() {
     if (syncInterval) return;
     syncInterval = setInterval(async () => {
-        const netTab = document.getElementById('network-tab');
-        if (!netTab || !netTab.classList.contains('active')) return;
+        // Skip sync if a modal is open (user is editing)
+        const openModals = document.querySelectorAll('.modal.show');
+        if (openModals.length > 0) return;
         try {
-            const [n, l, s] = await Promise.all([
-                apiFetch('nodes'), apiFetch('links'), apiFetch('shapes')
+            const [eventsData, docsData, nodesData, linksData, shapesData] = await Promise.all([
+                apiFetch('events'),
+                apiFetch('documents'),
+                apiFetch('nodes'),
+                apiFetch('links'),
+                apiFetch('shapes'),
             ]);
-            const hash = JSON.stringify({ n, l, s });
-            if (hash !== lastSyncData) {
-                lastSyncData = hash;
-                nodes = Array.isArray(n) ? n : [];
-                links = Array.isArray(l) ? l : [];
-                shapes = Array.isArray(s) ? s : [];
+
+            const eventsHash = JSON.stringify(eventsData);
+            if (eventsHash !== syncHashes.events) {
+                syncHashes.events = eventsHash;
+                events = Array.isArray(eventsData) ? eventsData : [];
+                loadAllTags();
+                renderTimeline();
+            }
+
+            const docsHash = JSON.stringify(docsData);
+            if (docsHash !== syncHashes.documents) {
+                syncHashes.documents = docsHash;
+                documents = Array.isArray(docsData) ? docsData : [];
+                renderDocuments();
+            }
+
+            const netHash = JSON.stringify({ n: nodesData, l: linksData, s: shapesData });
+            if (netHash !== syncHashes.network) {
+                syncHashes.network = netHash;
+                nodes = Array.isArray(nodesData) ? nodesData : [];
+                links = Array.isArray(linksData) ? linksData : [];
+                shapes = Array.isArray(shapesData) ? shapesData : [];
                 populateNodeSelects();
                 renderNodeList();
                 renderShapeList();
@@ -1248,10 +1270,6 @@ function startSync() {
     }, 5000);
 }
 
-function stopSync() {
-    if (syncInterval) { clearInterval(syncInterval); syncInterval = null; }
-}
-
 function getCanvasNodeAt(mx, my) {
     return canvasNodes.find(n => Math.hypot(mx - n.x, my - n.y) < 28);
 }
@@ -1491,6 +1509,7 @@ document.getElementById('registrationToggle').addEventListener('change', saveReg
 async function loadDocuments() {
     try {
         documents = await apiFetch('documents');
+        syncHashes.documents = JSON.stringify(documents);
     } catch (e) {
         documents = [];
     }