diff --git a/code/file-preview/g3-file/index.js b/code/file-preview/g3-file/index.js
index dfc9be37..80941056 100644
--- a/code/file-preview/g3-file/index.js
+++ b/code/file-preview/g3-file/index.js
@@ -2118,6 +2118,7 @@
 
       this.selectedFiles.clear();
       this.currentPreviewFileId = null;
+      this.previewCache = null;
       this.renderFileList();
       this.updateUI();
       this.updatePreview();