diff --git a/web/src/components/highlight-markdown/index.tsx b/web/src/components/highlight-markdown/index.tsx
index c29fe371f3..0aebe43e5d 100644
--- a/web/src/components/highlight-markdown/index.tsx
+++ b/web/src/components/highlight-markdown/index.tsx
@@ -1,6 +1,5 @@
 import { MarkdownRemarkPlugins } from '@/constants/markdown-remark-plugins';
 import classNames from 'classnames';
-import DOMPurify from 'dompurify';
 import Markdown from 'react-markdown';
 import { Prism as SyntaxHighlighter } from 'react-syntax-highlighter';
 import {
@@ -31,7 +30,6 @@ const HighLightMarkdown = ({
   // would let entity-encoded payloads bypass DOMPurify and inject HTML.
   // Sanitize the *post*-processed string instead. (Coderabbit CRITICAL #3486038798)
   const processed = children ? preprocessLaTeX(children) : children;
-  const safeChildren = processed ? DOMPurify.sanitize(processed) : processed;
   const dir = children
     ? getDirAttribute(children.replace(citationMarkerReg, ''))
     : undefined;
@@ -67,7 +65,7 @@ const HighLightMarkdown = ({
           } as any
         }
       >
-        {safeChildren}
+        {processed}
       </Markdown>
     </div>
   );
diff --git a/web/src/components/ui/form.tsx b/web/src/components/ui/form.tsx
index 0064ae326a..92cf111efa 100644
--- a/web/src/components/ui/form.tsx
+++ b/web/src/components/ui/form.tsx
@@ -149,7 +149,7 @@ const FormDescription = React.forwardRef<
     <p
       ref={ref}
       id={formDescriptionId}
-      className={cn('text-sm text-muted-foreground', className)}
+      className={cn('text-sm text-text-disabled', className)}
       {...props}
     />
   );
diff --git a/web/src/locales/en.ts b/web/src/locales/en.ts
index 43745cc384..3dbabe9252 100644
--- a/web/src/locales/en.ts
+++ b/web/src/locales/en.ts
@@ -1782,6 +1782,8 @@ Example: Virtual Hosted Style`,
       updateDate: 'Date',
       role: 'State',
       invite: 'Invite member',
+      inviteTip:
+        'Only registered users can be invited. Please register the account before sending an invitation.',
       agree: 'Accept',
       refuse: 'Decline',
       teamMembers: 'Team members',
diff --git a/web/src/locales/zh.ts b/web/src/locales/zh.ts
index 6fe42a0e4c..fe3ad9e161 100644
--- a/web/src/locales/zh.ts
+++ b/web/src/locales/zh.ts
@@ -964,7 +964,8 @@ NER：使用 spaCy NER 和基于规则的关键词提取来抽取实体和关系
       thinkingDefault: '系统默认',
       thinkingEnabled: '开启',
       thinkingDisabled: '关闭',
-      thinkingTip: '仅控制官方模型提供商中的 Qwen、Kimi 和 GLM 模型思考模式。系统默认会关闭 Qwen 思考，以避免任务长时间运行。',
+      thinkingTip:
+        '仅控制官方模型提供商中的 Qwen、Kimi 和 GLM 模型思考模式。系统默认会关闭 Qwen 思考，以避免任务长时间运行。',
       quote: '显示引文',
       quoteTip: '是否应该显示原文出处？',
       selfRag: 'Self-RAG',
@@ -1468,6 +1469,7 @@ NER：使用 spaCy NER 和基于规则的关键词提取来抽取实体和关系
       updateDate: '日期',
       role: '状态',
       invite: '邀请成员',
+      inviteTip: '仅支持邀请已注册用户，请先完成注册。',
       agree: '同意',
       refuse: '拒绝',
       teamMembers: '团队成员',
diff --git a/web/src/pages/user-setting/mcp/edit-mcp-dialog.tsx b/web/src/pages/user-setting/mcp/edit-mcp-dialog.tsx
index b472d21965..efa316f86a 100644
--- a/web/src/pages/user-setting/mcp/edit-mcp-dialog.tsx
+++ b/web/src/pages/user-setting/mcp/edit-mcp-dialog.tsx
@@ -105,7 +105,7 @@ export function EditMcpDialog({
       : tools;
   }, [data.variables?.tools, tools]);
 
-  const disabled = !!!tools?.length || testLoading || fieldChanged;
+  const disabled = !tools?.length || testLoading || fieldChanged;
 
   return (
     // <Dialog open onOpenChange={hideModal}>
@@ -174,6 +174,7 @@ export function EditMcpDialog({
       onCancel={hideModal}
       cancelText={t('common.cancel')}
       okText={t('common.save')}
+      maskClosable={false}
       footer={
         <DialogFooter>
           <DialogClose asChild>
diff --git a/web/src/pages/user-setting/setting-model/index.tsx b/web/src/pages/user-setting/setting-model/index.tsx
index 4b990989de..43eb07c6b6 100644
--- a/web/src/pages/user-setting/setting-model/index.tsx
+++ b/web/src/pages/user-setting/setting-model/index.tsx
@@ -11,7 +11,7 @@ import type {
   IAddProviderInstanceRequestBody,
   IModelInfo,
 } from '@/interfaces/request/llm';
-import { useCallback, useMemo, useState } from 'react';
+import { useCallback, useEffect, useMemo, useState } from 'react';
 import { isLocalLlmFactory } from '../utils';
 import SystemSetting from './components/system-setting';
 import { AvailableModels } from './components/un-add-model';
@@ -140,6 +140,12 @@ const ModelProviders = () => {
     [addProviderInstance, addInstanceModel],
   );
 
+  useEffect(() => {
+    if (!providerVisible) {
+      setProviderLoading(false);
+    }
+  }, [providerVisible]);
+
   const handleProviderVerify = useCallback(
     async (params: any) => {
       // ProviderModal's handleVerify flattens verifyArgs onto params
@@ -354,7 +360,6 @@ const ModelProviders = () => {
       <section className="flex flex-col w-2/5 overflow-auto scrollbar-auto">
         <AvailableModels handleAddModel={handleAddModel} />
       </section>
-
       {/* Unified ProviderModal (replaces 9 independent modals) */}
       <ProviderModal
         visible={providerVisible}
@@ -368,7 +373,6 @@ const ModelProviders = () => {
         onVerify={handleProviderVerify}
         onViewModeOk={handleViewModeOk}
       />
-
       <BedrockModal
         visible={bedrockAddingVisible}
         hideModal={hideBedrockAddingModal}
diff --git a/web/src/pages/user-setting/setting-team/add-user-modal.tsx b/web/src/pages/user-setting/setting-team/add-user-modal.tsx
index 3a734a6b4f..46caacf9c5 100644
--- a/web/src/pages/user-setting/setting-team/add-user-modal.tsx
+++ b/web/src/pages/user-setting/setting-team/add-user-modal.tsx
@@ -1,6 +1,7 @@
 import {
   Form,
   FormControl,
+  FormDescription,
   FormField,
   FormItem,
   FormLabel,
@@ -63,6 +64,9 @@ const AddingUserModal = ({
                 <FormControl>
                   <Input placeholder={t('setting.email')} {...field} />
                 </FormControl>
+                <FormDescription className="text-xs">
+                  {t('setting.inviteTip')}
+                </FormDescription>
                 <FormMessage />
               </FormItem>
             )}