diff --git a/backend/open_webui/routers/knowledge.py b/backend/open_webui/routers/knowledge.py
index 59cb298a53..6619842593 100644
--- a/backend/open_webui/routers/knowledge.py
+++ b/backend/open_webui/routers/knowledge.py
@@ -2385,7 +2385,7 @@ async def delete_knowledge_directory(
         subject_id=dir_id,
         data={'knowledge_id': id, 'move_files': move_files},
     )
-    return {'status': True}
+    return {'status': True, 'file_ids': [file.id for file in files]}
 
 
 @router.post('/{id}/file/move')
diff --git a/src/lib/components/workspace/Knowledge/KnowledgeBase/Browser.svelte b/src/lib/components/workspace/Knowledge/KnowledgeBase/Browser.svelte
index 22a7645ef8..d08d597099 100644
--- a/src/lib/components/workspace/Knowledge/KnowledgeBase/Browser.svelte
+++ b/src/lib/components/workspace/Knowledge/KnowledgeBase/Browser.svelte
@@ -2,7 +2,6 @@
 	import { getContext, onDestroy } from 'svelte';
 	import { beforeNavigate, goto } from '$app/navigation';
 	import { mobile } from '$lib/stores';
-	import { getKnowledgeById } from '$lib/apis/knowledge';
 	import { createFocusTrap } from 'focus-trap';
 	import Files from './Files.svelte';
 	import FileViewer from './FileViewer.svelte';
@@ -74,18 +73,11 @@
 			selected = null;
 			state = newViewerState();
 		});
-	const changed = async (file?: KnowledgeFile, removed?: string[]) => {
+	const changed = (file?: KnowledgeFile, removed?: string[]) => {
 		if (file && file.id === selected?.id) selected = file;
 		else if (removed?.includes(selected?.id || '')) {
 			selected = null;
 			state = newViewerState();
-		} else if (!file && !removed && selected) {
-			const id = selected.id;
-			const result = await getKnowledgeById(localStorage.token, knowledge.id);
-			if (selected?.id === id && !result.files?.some((item: KnowledgeFile) => item.id === id)) {
-				selected = null;
-				state = newViewerState();
-			}
 		}
 	};
 	beforeNavigate((navigation) => {
diff --git a/src/lib/components/workspace/Knowledge/KnowledgeBase/Files.svelte b/src/lib/components/workspace/Knowledge/KnowledgeBase/Files.svelte
index 6a6c923dc8..7e00e584c9 100644
--- a/src/lib/components/workspace/Knowledge/KnowledgeBase/Files.svelte
+++ b/src/lib/components/workspace/Knowledge/KnowledgeBase/Files.svelte
@@ -273,15 +273,14 @@
 				toast.success($i18n.t('File removed successfully.'));
 				onChanged(undefined, [deletion.file.id!]);
 			} else if (deletion.directory) {
-				await deleteKnowledgeDirectory(
+				const res = await deleteKnowledgeDirectory(
 					localStorage.token,
 					knowledge.id,
 					deletion.directory.id,
 					!deleteContents
 				);
 				toast.success($i18n.t('Directory deleted.'));
-				// The selected document may be in an unloaded descendant; let the browser verify membership.
-				onChanged();
+				onChanged(undefined, res.file_ids);
 				expanded.delete(deletion.directory.id);
 				expanded = new Set(expanded);
 			}