diff --git a/docker/deploy/frontend.Dockerfile b/docker/deploy/frontend.Dockerfile
index de8df2a9..87393f04 100644
--- a/docker/deploy/frontend.Dockerfile
+++ b/docker/deploy/frontend.Dockerfile
@@ -29,6 +29,7 @@ ENV SERVER_API_URL=$SERVER_API_URL
 
 # Build the application
 ENV DISABLE_ESLINT_PLUGIN=true
+ENV NODE_OPTIONS="--max-old-space-size=8192"
 RUN npm run build
 
 # Production image, copy all the files and run next
diff --git a/docker/prod/frontend.Dockerfile b/docker/prod/frontend.Dockerfile
index e4741ad5..f730f763 100644
--- a/docker/prod/frontend.Dockerfile
+++ b/docker/prod/frontend.Dockerfile
@@ -28,6 +28,7 @@ ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
 
 # Build the application
 ENV DISABLE_ESLINT_PLUGIN=true
+ENV NODE_OPTIONS="--max-old-space-size=8192"
 RUN npm run build
 
 # Production image, copy all the files and run next
diff --git a/frontend/lib/registry/components/v2-process-work-standard/components/DetailFormModal.tsx b/frontend/lib/registry/components/v2-process-work-standard/components/DetailFormModal.tsx
index 78a9b2bc..af7b173c 100644
--- a/frontend/lib/registry/components/v2-process-work-standard/components/DetailFormModal.tsx
+++ b/frontend/lib/registry/components/v2-process-work-standard/components/DetailFormModal.tsx
@@ -133,33 +133,51 @@ export function DetailFormModal({
   // BOM 자재 로드 완료 후 체크 상태 초기화
   // bomChecked 키는 BOM detail 고유 id(mat.id) 기준 — 동일 child_item_id가 여러 row로
   // 있어도 독립적으로 체크되도록 함. legacy 저장값은 child_item_id로 저장되어 있을 수
-  // 있으므로 폴백 매핑으로 복원.
+  // 있으므로 폴백 매핑으로 복원. selected_bom_items 미저장 데이터는 bom_item_id 단일값으로 폴백.
   useEffect(() => {
     if (!open || bomMaterials.length === 0) return;
-    if (mode === "edit" && editData?.selected_bom_items) {
-      const savedBom = editData.selected_bom_items;
-      const parsedBom = typeof savedBom === "string" ? JSON.parse(savedBom) : savedBom;
-      if (Array.isArray(parsedBom)) {
-        const matIds = new Set(bomMaterials.map((m) => m.id));
-        const restored = new Set<string>();
-        const seenChildForLegacy = new Set<string>();
+    if (mode === "edit") {
+      const matIds = new Set(bomMaterials.map((m) => m.id));
+      const restored = new Set<string>();
+      const seenChildForLegacy = new Set<string>();
+
+      // 1차 — selected_bom_items 배열 (정상 포맷)
+      const savedBom = editData?.selected_bom_items;
+      let parsedBom: unknown = savedBom;
+      if (typeof savedBom === "string" && savedBom) {
+        try { parsedBom = JSON.parse(savedBom); } catch { parsedBom = []; }
+      }
+      if (Array.isArray(parsedBom) && parsedBom.length > 0) {
         for (const saved of parsedBom) {
-          if (matIds.has(saved)) {
-            restored.add(saved); // 신규 포맷: bom_detail id 저장값
+          const key = String(saved);
+          if (matIds.has(key)) {
+            restored.add(key); // 신규 포맷: bom_detail id 저장값
           } else {
             // legacy 폴백: child_item_id로 저장된 값 → 해당 품목의 첫 번째 행 1건 자동 체크
-            const legacyKey = String(saved);
-            if (seenChildForLegacy.has(legacyKey)) continue;
-            const firstMat = bomMaterials.find((m) => m.child_item_id === legacyKey);
+            if (seenChildForLegacy.has(key)) continue;
+            const firstMat = bomMaterials.find((m) => m.child_item_id === key);
             if (firstMat) {
               restored.add(firstMat.id);
-              seenChildForLegacy.add(legacyKey);
+              seenChildForLegacy.add(key);
             }
           }
         }
-        setBomChecked(restored);
-        return;
       }
+
+      // 2차 — selected_bom_items가 비어있으면 bom_item_id 단일값 폴백
+      // (구버전 저장 데이터: selected_bom_items 누락 + bom_item_id에 단일 자재 식별자만 채워진 경우)
+      if (restored.size === 0 && editData?.bom_item_id) {
+        const bomItemId = String(editData.bom_item_id);
+        if (matIds.has(bomItemId)) {
+          restored.add(bomItemId); // bom_detail.id 직접 매칭
+        } else {
+          const firstMat = bomMaterials.find((m) => m.child_item_id === bomItemId);
+          if (firstMat) restored.add(firstMat.id); // child_item_id 매칭
+        }
+      }
+
+      setBomChecked(restored);
+      return;
     }
     // 신규 추가 또는 저장값 없으면 전체 해제
     setBomChecked(new Set());
diff --git a/frontend/lib/registry/components/v2-process-work-standard/types.ts b/frontend/lib/registry/components/v2-process-work-standard/types.ts
index 95143107..f4556acb 100644
--- a/frontend/lib/registry/components/v2-process-work-standard/types.ts
+++ b/frontend/lib/registry/components/v2-process-work-standard/types.ts
@@ -138,7 +138,12 @@ export interface WorkItemDetail {
   material_name?: string;
   quantity?: string;
   material_unit?: string;
-  selected_bom_items?: string[];
+  selected_bom_items?: string[] | string;
+  // 단일 자재 식별자(구버전 저장 데이터 호환). selected_bom_items가 비었을 때 폴백 매칭에 사용.
+  bom_item_id?: string;
+  bom_item_name?: string;
+  bom_qty?: string;
+  bom_unit?: string;
 }
 
 export interface InspectionStandard {