diff --git a/src/components/management/StuffSearchCondition.jsx b/src/components/management/StuffSearchCondition.jsx
index 3774fbfe..85563672 100644
--- a/src/components/management/StuffSearchCondition.jsx
+++ b/src/components/management/StuffSearchCondition.jsx
@@ -1166,7 +1166,7 @@ export default function StuffSearchCondition() {
                 <th>{getMessage('stuff.search.schSelSaleStoreId')}</th>
                 <td colSpan={5}>
                   <div className="form-flex-wrap">
-                    <div className="select-wrap mr5" style={{ flex: 1 }}>
+                    <div className="select-wrap mr5" style={{ flex: 1, display: session?.storeId !== 'T01' && session?.storeLvl !== '1' ? 'none' : undefined }}>
                       {session?.storeId === 'T01' && (
                         <Select
                           id="long-value-select1"
@@ -1235,7 +1235,7 @@ export default function StuffSearchCondition() {
                           isClearable={false}
                         />
                       )}
-                      {session?.storeId !== 'T01' && session?.storeLvl !== '1' && (
+                      {false && session?.storeId !== 'T01' && session?.storeLvl !== '1' && (
                         <Select
                           id="long-value-select1"
                           instanceId="long-value-select1"
@@ -1267,7 +1267,7 @@ export default function StuffSearchCondition() {
                         />
                       )}
                     </div>
-                    <div className="select-wrap mr10" style={{ flex: 1 }}>
+                    <div className="select-wrap mr10" style={{ flex: session?.storeId !== 'T01' && session?.storeLvl !== '1' ? '0 0 50%' : 1 }}>
                       <Select
                         id="long-value-select2"
                         instanceId="long-value-select2"
diff --git a/src/hooks/common/useMasterController.js b/src/hooks/common/useMasterController.js
index b46adc81..36f5bd61 100644
--- a/src/hooks/common/useMasterController.js
+++ b/src/hooks/common/useMasterController.js
@@ -7,7 +7,10 @@ import { atom, useRecoilState, useRecoilValue } from 'recoil'
 
 
 // API 요청을 저장할 모듈 레벨 변수 (Hook 외부)
-let roofMaterialPromise = null;
+// 전역 Promise 캐시
+const roofMaterialPromiseCache = new Map()
+let cacheKey = 'default'
+
 /**
  * 마스터 컨트롤러 훅
  * @returns
@@ -22,24 +25,117 @@ export function useMasterController() {
    * 지붕재 목록 조회
    * @returns
    */
+
+  const delay = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
+
   const getRoofMaterialList = async () => {
     // 1. 이미 진행 중이거나 완료된 Promise가 있으면 그것을 반환
-    if (roofMaterialPromise) {
-      return roofMaterialPromise;
+    if (roofMaterialPromiseCache.has(cacheKey)) {
+      console.log('🔄 getRoofMaterialList: Returning cached promise')
+      return roofMaterialPromiseCache.get(cacheKey)
     }
 
-    // 2. 처음 호출될 때 Promise를 생성하여 변수에 할당
-    roofMaterialPromise = get({ url: '/api/v1/master/getRoofMaterialList' })
-      .then((res) => {
-        return res;
-      })
-      .catch((error) => {
-        // 에러 발생 시 다음 호출을 위해 초기화
-        roofMaterialPromise = null;
-        throw error;
-      });
+    console.log('🚀 getRoofMaterialList: Creating new promise')
 
-    return roofMaterialPromise;
+    const MAX_RETRY = 15        // 15번으로 증가 (일본 지역 대응)
+    const RETRY_DELAY = 2000   // 2초 간격
+    const MAX_BACKOFF = 10000  // 최대 10초까지 지수 백오프
+
+    const fetchWithRetry = async () => {
+      let lastError = null
+      let retryCount = 0
+
+      for (let attempt = 0; attempt < MAX_RETRY; attempt++) {
+        try {
+          // 지수 백오프 적용: 2초, 4초, 8초, ... 최대 10초
+          const backoffDelay = Math.min(RETRY_DELAY * Math.pow(2, attempt), MAX_BACKOFF)
+          if (attempt > 0) {
+            console.log(`⏳ Waiting ${backoffDelay/1000}s before retry ${attempt + 1}/${MAX_RETRY}`)
+            await delay(backoffDelay)
+          }
+          
+          console.log(`🌐 API Request ${attempt + 1}/${MAX_RETRY}: /api/v1/master/getRoofMaterialList`)
+          const res = await get({ url: '/api/v1/master/getRoofMaterialList' })
+          console.log('✅ getRoofMaterialList: Success on attempt', attempt + 1)
+          
+          // 재시도 중이었으면 성공 메시지 표시
+          if (retryCount > 0) {
+            swalFire({
+              icon: 'success',
+              title: getMessage('server.restored.title'),
+              text: `${getMessage('server.restored.text')} (${retryCount}${getMessage('server.retries')})`,
+              timer: 3000, // 메시지 표시 시간 증가
+              showConfirmButton: false
+            })
+          }
+          
+          return res
+        } catch (error) {
+          lastError = error
+          retryCount++
+
+          // 500 계열만 기다렸다가 재시도
+          const status = error?.response?.status
+          if (status && status >= 500) {
+            console.log(`⚠️ getRoofMaterialList: 500 error on attempt ${attempt + 1}, retrying...`)
+            
+            // 첫 번째 500 에러에만 메시지 표시
+            if (attempt === 0) {
+              swalFire({
+                icon: 'warning',
+                title: getMessage('server.error.title'),
+                text: getMessage('server.error.text'),
+                timer: 4000, // 경고 메시지 시간 증가
+                showConfirmButton: false
+              })
+            }
+            
+            continue
+          }
+
+          // 네트워크 에러(ECONNRESET, ETIMEDOUT 등)도 재시도
+          if (error.code === 'ECONNRESET' || error.code === 'ETIMEDOUT' || error.code === 'ENOTFOUND') {
+            console.log(`🌐 Network error on attempt ${attempt + 1}:`, error.code)
+            if (attempt === 0) {
+              swalFire({
+                icon: 'warning',
+                title: getMessage('network.error.title'),
+                text: getMessage('network.error.text'),
+                timer: 4000,
+                showConfirmButton: false
+              })
+            }
+            continue
+          }
+
+          // 500이나 네트워크 에러가 아니면 즉시 실패
+          console.log(`❌ getRoofMaterialList: Non-retryable error on attempt ${attempt + 1}:`, error)
+          throw error
+        }
+      }
+
+      // 모든 재시도 실패 시
+      console.log('💥 getRoofMaterialList: All retries failed')
+      swalFire({
+        icon: 'error',
+        title: getMessage('server.failed.title'),
+        text: `${getMessage('server.failed.text')} (${MAX_RETRY}${getMessage('server.retries')})`,
+        confirmButtonText: getMessage('common.ok')
+      })
+      
+      throw lastError
+    }
+
+    const promise = fetchWithRetry()
+      .finally(() => {
+        // 성공/실패 모두 끝나면 캐시에서 제거
+        console.log('🏁 getRoofMaterialList: Promise resolved, removing from cache')
+        roofMaterialPromiseCache.delete(cacheKey)
+      })
+
+    // 캐시에 Promise 저장
+    roofMaterialPromiseCache.set(cacheKey, promise)
+    return promise
   }
 
   /**
@@ -263,6 +359,10 @@ export function useMasterController() {
     })
   }
 
+  const quotationErrSave = async (params) => {
+    return await post({ url: '/api/v1/master/quotationErrSave', data: params })
+  }
+
   return {
     getRoofMaterialList,
     getModuleTypeItemList,
@@ -278,5 +378,6 @@ export function useMasterController() {
     updateObjectDate,
     getQuotationItem,
     getPcsConnOptionItemList,
+    quotationErrSave,
   }
 }
diff --git a/src/hooks/module/useTrestle.js b/src/hooks/module/useTrestle.js
index 173a5cd2..19da5b4e 100644
--- a/src/hooks/module/useTrestle.js
+++ b/src/hooks/module/useTrestle.js
@@ -1,5 +1,5 @@
 import { useRecoilValue } from 'recoil'
-import { canvasState, currentAngleTypeSelector } from '@/store/canvasAtom'
+import { canvasState, currentAngleTypeSelector, currentCanvasPlanState } from '@/store/canvasAtom'
 import { POLYGON_TYPE, TRESTLE_MATERIAL } from '@/common/common'
 import { moduleSelectionDataState } from '@/store/selectedModuleOptions'
 import { getDegreeByChon } from '@/util/canvas-util'
@@ -11,6 +11,7 @@ import { useContext } from 'react'
 import { QcastContext } from '@/app/QcastProvider'
 import { useCircuitTrestle } from '@/hooks/useCirCuitTrestle'
 import { useMessage } from '@/hooks/useMessage'
+import { loginUserStore } from '@/store/commonAtom'
 
 // 모듈간 같은 행, 열의 마진이 10 이하인 경우는 같은 행, 열로 간주
 const MODULE_MARGIN = 10
@@ -18,7 +19,9 @@ const MODULE_MARGIN = 10
 export const useTrestle = () => {
   const canvas = useRecoilValue(canvasState)
   const moduleSelectionData = useRecoilValue(moduleSelectionDataState) //다음으로 넘어가는 최종 데이터
-  const { getQuotationItem } = useMasterController()
+  const { getQuotationItem, quotationErrSave } = useMasterController()
+  const currentCanvasPlan = useRecoilValue(currentCanvasPlanState)
+  const loginUserState = useRecoilValue(loginUserStore)
   const currentAngleType = useRecoilValue(currentAngleTypeSelector)
   const roofSizeSet = useRecoilValue(basicSettingState).roofSizeSet
   const isTrestleDisplay = useRecoilValue(trestleDisplaySelector)
@@ -757,6 +760,12 @@ export const useTrestle = () => {
         text: result.resultMsg || getMessage('common.message.noData'),
         icon: 'error'
       })
+      quotationErrSave({
+        objectNo: currentCanvasPlan.objectNo,
+        planNo: currentCanvasPlan.planNo,
+        rejectRsn: result.resultMsg,
+        regId: loginUserState.userId,
+      })
       clear()
       setViewCircuitNumberTexts(true)
       setIsGlobalLoading(false)
diff --git a/src/hooks/option/useCanvasSetting.js b/src/hooks/option/useCanvasSetting.js
index f80b2902..8f339c47 100644
--- a/src/hooks/option/useCanvasSetting.js
+++ b/src/hooks/option/useCanvasSetting.js
@@ -153,12 +153,12 @@ export function useCanvasSetting(executeEffect = true) {
       return
     }
 
-    /** 초 1회만 실행하도록 처리 */
-    addRoofMaterials()
+    // Roof materials are now initialized in Header.jsx to avoid duplicate calls
   }, [executeEffect])
 
   /**
-   * 지붕재 초기세팅
+   * 지붕재 초기세팅 (fallback - primary initialization is in Header.jsx)
+   * This function is only called when roof materials are needed but not yet loaded
    */
   const addRoofMaterials = async () => {
     if (roofMaterials.length !== 0) {
@@ -320,12 +320,26 @@ export function useCanvasSetting(executeEffect = true) {
     // objectNo가 전달되면 사용, 아니면 Recoil state의 correntObjectNo 사용
     const targetObjectNo = objectNo || correntObjectNo
 
-    // 지붕재 데이터가 없으면 먼저 로드
+    // 지붕재 데이터가 없으면 Header.jsx에서 로드될 때까지 기다림
     let materials = roofMaterials
     if (!materials || materials.length === 0) {
-      logger.log('Waiting for roofMaterials to be loaded...')
-      materials = await addRoofMaterials()
-      logger.log('roofMaterials loaded:', materials)
+      logger.log('Waiting for roofMaterials to be loaded from Header.jsx...')
+      // 최대 2초간 기다림 (20번 × 100ms)
+      let waitCount = 0
+      while ((!materials || materials.length === 0) && waitCount < 20) {
+        await new Promise(resolve => setTimeout(resolve, 100))
+        materials = roofMaterials
+        waitCount++
+      }
+      
+      if (!materials || materials.length === 0) {
+        logger.log('roofMaterials still not loaded after 2 seconds, proceeding without them')
+        // 비상시에만 addRoofMaterials 호출 (fallback)
+        materials = await addRoofMaterials()
+        logger.log('roofMaterials loaded via fallback:', materials)
+      } else {
+        logger.log('roofMaterials loaded from Header.jsx:', materials)
+      }
     }
 
     try {
diff --git a/src/hooks/useAxios.js b/src/hooks/useAxios.js
index a5c1708a..a2ddc1dc 100644
--- a/src/hooks/useAxios.js
+++ b/src/hooks/useAxios.js
@@ -86,15 +86,21 @@ export function useAxios(lang = '') {
       .get(url, option)
       .then((res) => res.data)
       .catch((error) => {
-        console.error('🚨 GET Error:', {
-          url,
-          method: 'GET',
-          timestamp: new Date().toISOString(),
-          errorMessage: error.message,
-          status: error.response?.status,
-          statusText: error.response?.statusText,
-          config: error.config
-        })
+        // 500 에러는 재시도되므로 로깅을 줄임
+        const status = error?.response?.status
+        if (status === 500) {
+          console.warn('🔄 Server Error (500): Will retry...', url)
+        } else {
+          console.error('🚨 GET Error:', {
+            url,
+            method: 'GET',
+            timestamp: new Date().toISOString(),
+            errorMessage: error.message,
+            status: error.response?.status,
+            statusText: error.response?.statusText,
+            config: error.config
+          })
+        }
         throw error
       })
   }
diff --git a/src/hooks/useCanvasEvent.js b/src/hooks/useCanvasEvent.js
index 7808bb5f..0a1de7c4 100644
--- a/src/hooks/useCanvasEvent.js
+++ b/src/hooks/useCanvasEvent.js
@@ -15,6 +15,7 @@ export function useCanvasEvent() {
   const [currentObject, setCurrentObject] = useRecoilState(currentObjectState)
   const canvasSize = useRecoilValue(canvasSizeState)
   const [canvasZoom, setCanvasZoom] = useRecoilState(canvasZoomState)
+  const [shouldCenter, setShouldCenter] = useState(false) // 중앙 정렬 플래그 추가
   const lengthTextOption = useRecoilValue(fontSelector('lengthText'))
   const currentMenu = useRecoilValue(currentMenuState)
   const { changeCorridorDimensionText } = useText()
@@ -23,6 +24,17 @@ export function useCanvasEvent() {
   useEffect(() => {
     canvas?.setZoom(canvasZoom / 100)
   }, [canvasZoom])
+  
+  // canvasZoom이 100으로 변경되고 shouldCenter가 true일 때만 중앙 정렬 실행
+  useEffect(() => {
+    if (canvasZoom === 100 && canvas && shouldCenter) {
+      setTimeout(() => {
+        zoomToAllObjects()
+        canvas.renderAll()
+        setShouldCenter(false) // 실행 후 플래그 초기화
+      }, 100)
+    }
+  }, [canvasZoom, shouldCenter])
 
   useEffect(() => {
     attachDefaultEventOnCanvas()
@@ -416,15 +428,35 @@ export function useCanvasEvent() {
   }
 
   const handleZoomClear = () => {
+    setShouldCenter(true) // 중앙 정렬 플래그 설정
     setCanvasZoom(100)
-
-    zoomToAllObjects()
-    canvas.renderAll()
   }
 
   const zoomToAllObjects = () => {
-    const objects = canvas.getObjects().filter((obj) => obj.visible)
-    if (objects.length === 0) return
+    const allObjects = canvas.getObjects()
+    // 주요 도형 객체만 필터링 (roof, arrow 등)
+    const objects = allObjects.filter((obj) => {
+      // 주요 도형 객체만 포함
+      return obj.name === 'roof' || 
+             obj.name === 'arrow' ||
+             obj.name === 'module' ||
+             obj.name === 'dormer' ||
+             obj.name === 'object'
+    })
+    
+    console.log('🔍 All objects:', allObjects.length)
+    console.log('🔍 Main objects for centering:', objects.length)
+    console.log('🔍 Main object details:', objects.map(obj => ({
+      name: obj.name,
+      type: obj.type,
+      visible: obj.visible,
+      id: obj.id
+    })))
+    
+    if (objects.length === 0) {
+      console.log('❌ No main objects found for centering')
+      return
+    }
 
     let minX = Infinity,
       minY = Infinity
@@ -439,11 +471,52 @@ export function useCanvasEvent() {
       maxY = Math.max(maxY, bounds.top + bounds.height)
     })
 
-    const centerX = (minX + maxX) / 2
-    const centerY = (minY + maxY) / 2
-    const centerPoint = new fabric.Point(centerX, centerY)
-
-    canvas.zoomToPoint(centerPoint, 1)
+    const objectsCenterX = (minX + maxX) / 2
+    const objectsCenterY = (minY + maxY) / 2
+    
+    // 화면 중앙 좌표 (메뉴 높이 고려하여 Y 위치 조정)
+    const screenCenterX = canvas.getWidth() / 2
+    const menuHeightOffset = 80 // 위쪽 메뉴 높이만큼 위로 조정
+    const screenCenterY = canvas.getHeight() / 2 - menuHeightOffset
+    
+    // 객체 중심을 화면 중앙으로 이동
+    const deltaX = screenCenterX - objectsCenterX
+    const deltaY = screenCenterY - objectsCenterY
+    
+    // canvas viewport transform 조정
+    const viewportTransform = canvas.viewportTransform
+    viewportTransform[4] += deltaX
+    viewportTransform[5] += deltaY
+    
+    canvas.setViewportTransform(viewportTransform)
+    
+    // 브라우저 스크롤을 중앙으로 조정하여 전체 canvas를 모니터 중앙에 위치
+    const canvasElement = canvas.getElement()
+    const canvasRect = canvasElement.getBoundingClientRect()
+    
+    // 현재 스크롤 위치
+    const currentScrollTop = window.pageYOffset || document.documentElement.scrollTop
+    const currentScrollLeft = window.pageXOffset || document.documentElement.scrollLeft
+    
+    // canvas의 현재 화면 위치
+    const canvasScreenTop = canvasRect.top + currentScrollTop
+    const canvasScreenLeft = canvasRect.left + currentScrollLeft
+    
+    // 모니터 중앙
+    const monitorCenterX = window.innerWidth / 2
+    const monitorCenterY = window.innerHeight / 2
+    
+    // canvas가 모니터 중앙에 오도록 스크롤 위치 계산
+    const targetScrollLeft = canvasScreenLeft + (canvasRect.width / 2) - monitorCenterX
+    const targetScrollTop = canvasScreenTop + (canvasRect.height / 2) - monitorCenterY + menuHeightOffset
+    
+    // 스크롤을 중앙으로 이동
+    window.scrollTo({
+      top: targetScrollTop,
+      left: targetScrollLeft,
+      behavior: 'smooth' // 부드러운 스크롤
+    })
+    
     canvas.renderAll()
   }
 
diff --git a/src/locales/ja.json b/src/locales/ja.json
index feb9945f..13435c2a 100644
--- a/src/locales/ja.json
+++ b/src/locales/ja.json
@@ -567,6 +567,15 @@
   "common.finish": "完了",
   "common.ok": "確認",
   "common.cancel": "キャンセル",
+  "server.error.title": "サーバーエラー",
+  "server.error.text": "サーバーで一時的な問題が発生しました。自動的に再試行します...",
+  "server.restored.title": "サーバー接続復旧",
+  "server.restored.text": "サーバー接続が復旧しました",
+  "server.failed.title": "サーバー接続失敗",
+  "server.failed.text": "サーバー接続に失敗しました。しばらくしてから再度お試しください",
+  "server.retries": "回再試行",
+  "network.error.title": "ネットワーク接続不安定",
+  "network.error.text": "インターネット接続が不安定です。自動的に再試行します...",
   "commons.west": "西",
   "commons.east": "東",
   "commons.south": "南",
diff --git a/src/locales/ko.json b/src/locales/ko.json
index 7e871e60..e3403f02 100644
--- a/src/locales/ko.json
+++ b/src/locales/ko.json
@@ -567,6 +567,15 @@
   "common.finish": "완료",
   "common.ok": "확인",
   "common.cancel": "취소",
+  "server.error.title": "서버 오류",
+  "server.error.text": "서버에 일시적인 문제가 발생했습니다. 자동으로 재시도합니다...",
+  "server.restored.title": "서버 연결 복구",
+  "server.restored.text": "서버 연결이 복구되었습니다",
+  "server.failed.title": "서버 연결 실패",
+  "server.failed.text": "서버 연결에 실패했습니다. 잠시 후 다시 시도해주세요",
+  "server.retries": "회 재시도",
+  "network.error.title": "네트워크 연결 불안",
+  "network.error.text": "인터넷 연결이 불안정합니다. 자동으로 재시도합니다...",
   "commons.west": "서",
   "commons.east": "동",
   "commons.south": "남",