diff --git a/src/components/nodes/BaseNode.tsx b/src/components/nodes/BaseNode.tsx
index d5373219..e5f1cca1 100644
--- a/src/components/nodes/BaseNode.tsx
+++ b/src/components/nodes/BaseNode.tsx
@@ -80,9 +80,21 @@ export function BaseNode({
   const trackedSettingsHeightRef = useRef(0);
   const isAnimatingRef = useRef(false);
   const animationTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const isInitialMountRef = useRef(true);
 
   // Adjust node height when settings expand or collapse
   useLayoutEffect(() => {
+    // On initial mount with settings already expanded (e.g. remount after
+    // onlyRenderVisibleElements), the node height already includes the panel.
+    // Just sync the tracked ref without adding height again.
+    if (isInitialMountRef.current) {
+      isInitialMountRef.current = false;
+      if (settingsExpanded && settingsPanelRef.current) {
+        trackedSettingsHeightRef.current = settingsPanelRef.current.offsetHeight;
+      }
+      return;
+    }
+
     // Cancel any pending animation timeout from a previous toggle (handles rapid toggling)
     if (animationTimeoutRef.current) {
       clearTimeout(animationTimeoutRef.current);