fixes #96134

src/vs/workbench/contrib/debug/browser/debugHover.ts

@@ -281,16 +281,16 @@ export class DebugHoverWidget implements IContentWidget {
 		}
 
 		this.valueContainer.hidden = true;
-		this.complexValueContainer.hidden = false;
 
+		await this.tree.setInput(expression);
 		this.complexValueTitle.textContent = expression.value;
 		this.complexValueTitle.title = expression.value;
 		this.layoutTreeAndContainer();
 		this.editor.layoutContentWidget(this);
 		this.scrollbar.scanDomNode();
-		await this.tree.setInput(expression);
 		this.tree.scrollTop = 0;
 		this.tree.scrollLeft = 0;
+		this.complexValueContainer.hidden = false;
 
 		if (focus) {
 			this.editor.render();