diff --git a/src/Router.jsx b/src/Router.jsx
index 688abe0..b747daa 100644
--- a/src/Router.jsx
+++ b/src/Router.jsx
@@ -6,8 +6,8 @@ import ProjectManager from "./pages/ProjectManager";
 import ProjectDetail from "./pages/ProjectDetail";
 import ShareCalendar from "./pages/ShareCalendar";
 import HumanResources from "./pages/HumanResources";
-import PrivateRoute from "./components/PrivateRoute";
-import RoleProtectedRoute from "./components/RoleProtectedRoute";
+import PrivateRoute from "./components/common/loading/PrivateRoute";
+import RoleProtectedRoute from "./components/common/loading/RoleProtectedRoute";
 
 const router = createBrowserRouter([
   {
diff --git a/src/components/common/LoadingComponents.jsx b/src/components/common/loading/LoadingComponents.jsx
similarity index 100%
rename from src/components/common/LoadingComponents.jsx
rename to src/components/common/loading/LoadingComponents.jsx
diff --git a/src/components/PrivateRoute.jsx b/src/components/common/loading/PrivateRoute.jsx
similarity index 89%
rename from src/components/PrivateRoute.jsx
rename to src/components/common/loading/PrivateRoute.jsx
index e895567..b16bf37 100644
--- a/src/components/PrivateRoute.jsx
+++ b/src/components/common/loading/PrivateRoute.jsx
@@ -1,5 +1,5 @@
 import { Navigate } from 'react-router-dom';
-import { useAuth } from '../hooks/useAuth.jsx';
+import { useAuth } from '../../../hooks/useAuth.jsx';
 
 function PrivateRoute({ children }) {
   const { isAuthenticated, loading } = useAuth();
diff --git a/src/components/RoleProtectedRoute.jsx b/src/components/common/loading/RoleProtectedRoute.jsx
similarity index 98%
rename from src/components/RoleProtectedRoute.jsx
rename to src/components/common/loading/RoleProtectedRoute.jsx
index f378eb7..b3e3c30 100644
--- a/src/components/RoleProtectedRoute.jsx
+++ b/src/components/common/loading/RoleProtectedRoute.jsx
@@ -1,5 +1,5 @@
 import { Navigate } from 'react-router-dom';
-import { useAuth } from '../hooks/useAuth.jsx';
+import { useAuth } from '../../../hooks/useAuth.jsx';
 
 function RoleProtectedRoute({ children, requiredRole, fallback = null }) {
   const { user, isAuthenticated, loading } = useAuth();
diff --git a/src/components/meeting/Meeting.jsx b/src/components/meeting/Meeting.jsx
index aa1a732..7d42eed 100644
--- a/src/components/meeting/Meeting.jsx
+++ b/src/components/meeting/Meeting.jsx
@@ -4,7 +4,7 @@ import MeetingTable from "./MeetingTable";
 import MeetingCreate from "./MeetingCreate";
 import MeetingDetail from "./MeetingDetail";
 import Dropdown from "../common/Dropdown";
-import { LoadingSpinner, ErrorFallback } from "../common/LoadingComponents";
+import { LoadingSpinner, ErrorFallback } from "../common/loading/LoadingComponents";
 import useMeetingStore from "../../store/meetingStore";
 
 function Meeting() {
diff --git a/src/components/meeting/MeetingCreate.jsx b/src/components/meeting/MeetingCreate.jsx
index 8435b0f..e947c25 100644
--- a/src/components/meeting/MeetingCreate.jsx
+++ b/src/components/meeting/MeetingCreate.jsx
@@ -2,7 +2,7 @@ import { useState, useRef } from "react";
 import { ArrowBack, Mic, Stop, PlayArrow, Pause } from "@mui/icons-material";
 import { employeesData } from "../../data/employees";
 import Dropdown from '../common/Dropdown';
-import { LoadingSpinner } from '../common/LoadingComponents';
+import { LoadingSpinner } from '../common/loading/LoadingComponents';
 import { useCreateMeeting, useUpdateMeeting } from '../../hooks/useMeetingQueries';
 
 function MeetingCreate({ onBack, onSave, meeting = null, isEditing = false }) {
diff --git a/src/components/project/ProjectCard.jsx b/src/components/project/ProjectCard.jsx
index df1cba3..0935e5d 100644
--- a/src/components/project/ProjectCard.jsx
+++ b/src/components/project/ProjectCard.jsx
@@ -151,16 +151,6 @@ function ProjectCard({ project, onAction }) {
                 >
                   편집
                 </button>
-                {/* <button
-                  onClick={(e) => {
-                    e.stopPropagation();
-                    onAction("clone", project);
-                    setIsMenuOpen(false);
-                  }}
-                  className="w-full text-left px-3 py-1.5 text-sm text-gray-700 hover:bg-white/50"
-                >
-                  복제
-                </button> */}
                 <div className="border-t border-white/20 my-1"></div>
                 <button
                   onClick={(e) => {
diff --git a/src/components/trouble/Trouble.jsx b/src/components/trouble/Trouble.jsx
deleted file mode 100644
index 397df10..0000000
--- a/src/components/trouble/Trouble.jsx
+++ /dev/null
@@ -1,10 +0,0 @@
-function Trouble() {
-  return (
-    <div className="p-6">
-      <h3 className="text-lg font-semibold mb-4">이슈 관리</h3>
-      <p className="text-gray-600">이슈 관리 컴포넌트가 여기에 표시됩니다.</p>
-    </div>
-  )
-}
-
-export default Trouble
diff --git a/src/hooks/useMeetingQueries.js b/src/hooks/useMeetingQueries.js
index cb3af61..7e1b491 100644
--- a/src/hooks/useMeetingQueries.js
+++ b/src/hooks/useMeetingQueries.js
@@ -7,7 +7,7 @@ export function useMeetings(projectId = 1, page = 1, size = 10) {
     queryKey: ['meetings', projectId, page, size],
     queryFn: () => getMeetings(projectId, page, size),
     staleTime: 2 * 60 * 1000, // 2분간 신선한 데이터
-    cacheTime: 10 * 60 * 1000, // 10분간 캐시 유지
+    cacheTime: 1 * 60 * 1000, // 10분간 캐시 유지
     refetchOnWindowFocus: true,
     select: (response) => {
       if (response.statusCode === 200) {
diff --git a/src/pages/ProjectDetail.jsx b/src/pages/ProjectDetail.jsx
index d254aea..14fbbc3 100644
--- a/src/pages/ProjectDetail.jsx
+++ b/src/pages/ProjectDetail.jsx
@@ -17,7 +17,6 @@ import Kanban from "../components/kanban/Kanban";
 import GanttChart from "../components/ganttchart/GanttChart";
 import Meeting from "../components/meeting/Meeting";
 import TeamManagement from "../components/teammanage/TeamManagement";
-import Trouble from "../components/trouble/Trouble";
 import SettingsTab from "../components/setting/Settings";
 
 function ProjectDetail() {
@@ -46,7 +45,6 @@ function ProjectDetail() {
     { id: "timeline", label: "간트차트", icon: Timeline },
     { id: "meeting", label: "회의록", icon: MeetingRoom },
     { id: "team", label: "팀 관리", icon: PeopleAlt },
-    // { id: "trouble", label: "장애 관리", icon: BugReport },
   ];
 
   const getStatusColor = (status) => {
@@ -102,8 +100,6 @@ function ProjectDetail() {
         return <Meeting />;
       case "team":
         return <TeamManagement project={project} />;
-      case "trouble":
-        return <Trouble />;
       case "settings":
         return <SettingsTab />;
       default:
@@ -122,7 +118,7 @@ function ProjectDetail() {
                 onClick={() => navigate("/projects")}
                 className="p-2 hover:bg-white/50 transition-colors"
               >
-                <ArrowBack className="w-5 h-5" />
+                <ArrowBack/>
               </button>
 
               <div>