diff --git a/blocks/FileItem/FileItem.js b/blocks/FileItem/FileItem.js
index f0ea45b8f..afd5cd1ea 100644
--- a/blocks/FileItem/FileItem.js
+++ b/blocks/FileItem/FileItem.js
@@ -332,7 +332,6 @@ export class FileItem extends UploaderBlock {
   destroyCallback() {
     super.destroyCallback();
 
-    this._debouncedGenerateThumb.cancel();
     FileItem.activeInstances.delete(this);
 
     this._reset();
@@ -353,6 +352,7 @@ export class FileItem extends UploaderBlock {
   disconnectedCallback() {
     super.disconnectedCallback();
 
+    this._debouncedGenerateThumb.cancel();
     this._observer?.disconnect();
   }