diff --git a/devtools/projects/ng-devtools/src/lib/shared/tree-visualizer-host/tree-visualizer.ts b/devtools/projects/ng-devtools/src/lib/shared/tree-visualizer-host/tree-visualizer.ts
index 26bf3a22e93..a40e2bde3d2 100644
--- a/devtools/projects/ng-devtools/src/lib/shared/tree-visualizer-host/tree-visualizer.ts
+++ b/devtools/projects/ng-devtools/src/lib/shared/tree-visualizer-host/tree-visualizer.ts
@@ -313,7 +313,7 @@ export class TreeVisualizer<T extends TreeNode = TreeNode> extends GraphRenderer
     const debouncer = new Debouncer();
     const resizeObserver = new ResizeObserver(
       debouncer.debounce(([entry]) => {
-        if (!entry || !this.snappedNode) {
+        if (!entry || !entry.contentRect.width || !entry.contentRect.height || !this.snappedNode) {
           return;
         }
         // Avoid executing the code on observer init.