fixes #44389

src/vs/base/browser/ui/list/listView.ts

@@ -115,7 +115,7 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
 		this._domNode.appendChild(this.scrollableElement.getDomNode());
 		container.appendChild(this._domNode);
 
-		this.disposables = [this.rangeMap, this.gesture, this.scrollableElement];
+		this.disposables = [this.rangeMap, this.gesture, this.scrollableElement, this.cache];
 
 		this.scrollableElement.onScroll(this.onScroll, this, this.disposables);
 		domEvent(this.rowsContainer, TouchEventType.Change)(this.onTouchChange, this, this.disposables);

src/vs/base/browser/ui/list/rowCache.ts

@@ -82,7 +82,7 @@ export class RowCache<T> implements IDisposable {
 
 		this.cache.forEach((cachedRows, templateId) => {
 			for (const cachedRow of cachedRows) {
-				const renderer = this.renderers[templateId];
+				const renderer = this.renderers.get(templateId);
 				renderer.disposeTemplate(cachedRow.templateData);
 				cachedRow.domNode = null;
 				cachedRow.templateData = null;