diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Page.ts b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Page.ts
index d1eb5f677..ebbe66146 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Page.ts
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Page.ts
@@ -332,6 +332,7 @@ export async function renderD03PlanAnalysis(root: HTMLElement): Promise<void> {
   async function loadAnalysis(): Promise<void> {
     try {
       analysis = await fetchPlanAnalysis(projectId, sentPoints());
+      startM = analysis.start_chainage_m;
     } catch (error) {
       analysis = null;
       showToast(`분석 저장본을 읽지 못했습니다 — ${errorText(error)}`, "error");
@@ -454,7 +455,6 @@ export async function renderD03PlanAnalysis(root: HTMLElement): Promise<void> {
     editable = !!(await fetchSessionUser())?.is_forest_service;
     if (!(await loadPoints())) return;
     await Promise.all([loadSurfaces(), loadAnalysis()]);
-    startM = analysis?.start_chainage_m ?? 0;
     refresh();
     map.fit();
     await loadBackground();