diff --git a/src/renderer/src/App.tsx b/src/renderer/src/App.tsx
index 252ec06..4d9b872 100644
--- a/src/renderer/src/App.tsx
+++ b/src/renderer/src/App.tsx
@@ -655,8 +655,6 @@ function LocalPcWorkspaceMockup({
   const studentSlug = makeStudentSlug(studentEmail)
   const clonePathPreview = makePlatformWorkspaceRoot(configuredWorkspaceRoot, studentSlug, weekNumber, platformKey)
   const remoteRuntimeRoot = `/tmp/autonomy-studio/sessions/${`${platformId}-${studentSlug}-week-${weekNumber}`.replace(/[^a-zA-Z0-9_.-]+/g, '-')}`
-  const draftClonePathPreview = makePlatformWorkspaceRoot(configuredDraftWorkspaceRoot, studentSlug, weekNumber, platformKey)
-  const draftGiteaRepositoryPreview = `${sourceSettingsDraft.giteaBaseUrl.replace(/\/+$/, '')}/${sourceSettingsDraft.giteaOwner}/${studentSlug}-week-${weekNumber}.git`
   const {
     visualizationStacks,
     visualizationStack,
@@ -1415,8 +1413,8 @@ function LocalPcWorkspaceMockup({
       workspaceRoot: remoteWorkspace
         ? platformSourceSettingsDefaults.workspaceRoot
         : sourceSettingsDraft.workspaceRoot.trim() || defaultStudioSourceSettings.workspaceRoot,
-      giteaBaseUrl: sourceSettingsDraft.giteaBaseUrl.trim().replace(/\/+$/, '') || defaultStudioSourceSettings.giteaBaseUrl,
-      giteaOwner: sourceSettingsDraft.giteaOwner.trim() || defaultStudioSourceSettings.giteaOwner,
+      giteaBaseUrl: sourceSettings.giteaBaseUrl,
+      giteaOwner: sourceSettings.giteaOwner,
       gpuEnabled: sourceSettingsDraft.gpuEnabled,
       rosDomainId: sourceSettingsDraft.rosDomainId.trim() || defaultStudioSourceSettings.rosDomainId
     })
@@ -2418,8 +2416,6 @@ function LocalPcWorkspaceMockup({
             configuredDraftWorkspaceRoot={configuredDraftWorkspaceRoot}
             sourceSettingsDraft={sourceSettingsDraft}
             platformSourceSettingsDefaults={platformSourceSettingsDefaults}
-            draftClonePathPreview={draftClonePathPreview}
-            draftGiteaRepositoryPreview={draftGiteaRepositoryPreview}
             onUpdateSourceSetting={updateSourceSetting}
             onResetSourceSettings={setSourceSettingsDraft}
             onSaveSourceSettings={saveSourceSettings}
@@ -3013,8 +3009,9 @@ export default function App(): React.JSX.Element {
 
   useEffect(() => {
     if (!courseSelectionVisible) return
+    if (studentCoursesLoaded || studentCoursesLoading) return
     void loadStudentCourses({ autoSelectSingle: false })
-  }, [courseSelectionVisible, loadStudentCourses])
+  }, [courseSelectionVisible, loadStudentCourses, studentCoursesLoaded, studentCoursesLoading])
 
   const loadCurriculum = useCallback(async (): Promise<void> => {
     if (!authReady || !studentCoursesLoaded || courseSelectionVisible || !selectedCourseId) return
@@ -4068,10 +4065,7 @@ export default function App(): React.JSX.Element {
                   activeLearningStep={activeLearningStep}
                   allowFutureLearningSteps={publicGuideCourseActive}
                   onLearningStepSelect={publicGuideCourseActive ? setActiveLearningStep : undefined}
-                  onSubmissionRecorded={() => {
-                    setCurriculumRefreshSignal((current) => current + 1)
-                    void loadStudentCourses({ autoSelectSingle: false })
-                  }}
+                  onSubmissionRecorded={() => undefined}
                 />
               </div>
             )}
diff --git a/src/renderer/src/components/TitleBar.tsx b/src/renderer/src/components/TitleBar.tsx
index edbba6b..974ab99 100644
--- a/src/renderer/src/components/TitleBar.tsx
+++ b/src/renderer/src/components/TitleBar.tsx
@@ -87,7 +87,7 @@ const LAUNCHER_API_BASE_URL = NOTIFICATION_API_BASE_URL.replace(/\/api$/, '')
 const LMS_AUTH_SESSION_STORAGE_KEY = 'autonomy-studio.lms.auth-session'
 const NOTIFICATION_DROPDOWN_LIMIT = 10
 const NOTIFICATION_MODAL_PAGE_SIZE = 8
-const NOTIFICATION_REFRESH_INTERVAL_MS = 10_000
+const NOTIFICATION_REFRESH_INTERVAL_MS = 60_000
 
 const normalizeNotification = (notification: NotificationMessage): NotificationMessage => ({
   ...notification,
diff --git a/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx b/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
index b67ef92..d5be15c 100644
--- a/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
+++ b/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
@@ -10,8 +10,6 @@ type Props = {
   configuredDraftWorkspaceRoot: string
   sourceSettingsDraft: StudioSourceSettings
   platformSourceSettingsDefaults: StudioSourceSettings
-  draftClonePathPreview: string
-  draftGiteaRepositoryPreview: string
   onUpdateSourceSetting: <Key extends keyof StudioSourceSettings>(key: Key, value: StudioSourceSettings[Key]) => void
   onResetSourceSettings: (settings: StudioSourceSettings) => void
   onSaveSourceSettings: () => void
@@ -26,8 +24,6 @@ function WorkspaceSettingsView({
   configuredDraftWorkspaceRoot,
   sourceSettingsDraft,
   platformSourceSettingsDefaults,
-  draftClonePathPreview,
-  draftGiteaRepositoryPreview,
   onUpdateSourceSetting,
   onResetSourceSettings,
   onSaveSourceSettings
@@ -50,7 +46,7 @@ function WorkspaceSettingsView({
               <div className={['mt-5 rounded-lg border p-4', dark ? 'border-white/10 bg-[#1f1f1f]' : 'border-[#e1e6ef] bg-[#f8fafc]'].join(' ')}>
                 <p className={['text-[13px] font-black', textStrong].join(' ')}>공용 플랫폼 환경</p>
                 <p className={['mt-2 text-[12px] font-semibold leading-relaxed', textMid].join(' ')}>
-                  원격 플랫폼의 워크스페이스와 저장소 설정은 강사/관리자 설정을 사용합니다.
+                  원격 플랫폼의 워크스페이스 설정은 강사/관리자 설정을 사용합니다.
                 </p>
                 <div className="mt-4 grid gap-2 text-[12px] font-semibold">
                   <div className={['rounded-md px-3 py-2', dark ? 'bg-white/[0.05] text-white/62' : 'bg-white text-[#4f596b]'].join(' ')}>
@@ -76,12 +72,6 @@ function WorkspaceSettingsView({
                     onChange={(value) => onUpdateSourceSetting('rosDomainId', value.replace(/[^\d]/g, '').slice(0, 3))}
                     dark={dark}
                   />
-                  <StudioSettingsField
-                    label="Gitea 주소"
-                    value={sourceSettingsDraft.giteaBaseUrl}
-                    onChange={(value) => onUpdateSourceSetting('giteaBaseUrl', value)}
-                    dark={dark}
-                  />
                   <StudioSettingsSwitch
                     label="GPU 가속"
                     description="ON이면 Docker 실행 시 NVIDIA GPU를 사용합니다."
@@ -91,18 +81,6 @@ function WorkspaceSettingsView({
                   />
                 </div>
 
-                <div className={['mt-5 rounded-lg border p-4', dark ? 'border-white/10 bg-[#1f1f1f]' : 'border-[#e1e6ef] bg-[#f8fafc]'].join(' ')}>
-                  <p className={['text-[12px] font-black', textMid].join(' ')}>저장소</p>
-                  <div className="mt-3 grid gap-2 font-mono text-[12px]">
-                    <div className={['rounded-md px-3 py-2', dark ? 'bg-white/[0.05] text-white/68' : 'bg-white text-[#4f596b]'].join(' ')}>
-                      clone path: {draftClonePathPreview}
-                    </div>
-                    <div className={['rounded-md px-3 py-2', dark ? 'bg-white/[0.05] text-white/68' : 'bg-white text-[#4f596b]'].join(' ')}>
-                      repository: {draftGiteaRepositoryPreview}
-                    </div>
-                  </div>
-                </div>
-
                 <div className="mt-5 flex justify-end gap-2">
                   <button
                     type="button"