diff --git a/resources/logic_utils.js b/resources/logic_utils.js
index 922939a..e9ac521 100644
--- a/resources/logic_utils.js
+++ b/resources/logic_utils.js
@@ -5,7 +5,9 @@
  */
 
 function toggleFullscreen() {
-    window.parent.postMessage({ type: 'toggle_fullscreen', node_id: TARGET_NODE_ID }, '*');
+    // Send current session name so fullscreen reload uses the right session
+    var currentSession = document.getElementById('session-input')?.value || '';
+    window.parent.postMessage({ type: 'toggle_fullscreen', node_id: TARGET_NODE_ID, session_name: currentSession }, '*');
 }
 
 
diff --git a/web/dashboard.js b/web/dashboard.js
index 0345cc5..252a2a5 100644
--- a/web/dashboard.js
+++ b/web/dashboard.js
@@ -180,9 +180,11 @@ app.registerExtension({
                     el.addEventListener('load', () => {
                         console.log('[UltimateGrid] Iframe reloaded after fullscreen toggle, restoring session...');
 
-                        // Get the session name from the node's widget
-                        const sessionWidget = graphNode.widgets?.find(w => w.name === "session_name");
-                        const sessionName = sessionWidget ? sessionWidget.value : null;
+                        // Get the session name — prefer the one from the iframe (user may have
+                        // loaded a different session via the picker), fall back to node widget
+                        const sessionName = event.data.session_name
+                            || graphNode.widgets?.find(w => w.name === "session_name")?.value
+                            || null;
 
                         if (sessionName && graphNode.forceLoadSession) {
                             graphNode.forceLoadSession(sessionName);