diff --git a/frontend/components/admin/dashboard/CanvasElement.tsx b/frontend/components/admin/dashboard/CanvasElement.tsx
index 09ddfe5c..ce08c522 100644
--- a/frontend/components/admin/dashboard/CanvasElement.tsx
+++ b/frontend/components/admin/dashboard/CanvasElement.tsx
@@ -853,7 +853,9 @@ export function CanvasElement({
           )}
           {/* 제목 */}
           {!element.type || element.type !== "chart" ? (
-            <span className="text-foreground text-xs font-bold">{element.customTitle || element.title}</span>
+            element.subtype === "map-summary-v2" && !element.customTitle ? null : (
+              <span className="text-foreground text-xs font-bold">{element.customTitle || element.title}</span>
+            )
           ) : null}
         </div>
         <div className="flex gap-1">
diff --git a/frontend/components/admin/dashboard/WidgetConfigSidebar.tsx b/frontend/components/admin/dashboard/WidgetConfigSidebar.tsx
index 5c272ec8..7ca9684b 100644
--- a/frontend/components/admin/dashboard/WidgetConfigSidebar.tsx
+++ b/frontend/components/admin/dashboard/WidgetConfigSidebar.tsx
@@ -152,7 +152,8 @@ export function WidgetConfigSidebar({ element, isOpen, onClose, onApply }: Widge
       setCustomTitle(element.customTitle || "");
       setShowHeader(element.showHeader !== false);
       setDataSource(element.dataSource || { type: "database", connectionType: "current", refreshInterval: 0 });
-      setDataSources(element.dataSources || []);
+      // dataSources는 element.dataSources 또는 chartConfig.dataSources에서 가져옴
+      setDataSources(element.dataSources || element.chartConfig?.dataSources || []);
       setQueryResult(null);
 
       // 리스트 위젯 설정 초기화
@@ -301,6 +302,8 @@ export function WidgetConfigSidebar({ element, isOpen, onClose, onApply }: Widge
             ...(isMultiDataSourceWidget
               ? {
                   dataSources: dataSources,
+                  // chartConfig에도 dataSources 포함 (일부 위젯은 chartConfig에서 읽음)
+                  chartConfig: { ...chartConfig, dataSources: dataSources },
                 }
               : {}),
           }
diff --git a/frontend/components/dashboard/DashboardViewer.tsx b/frontend/components/dashboard/DashboardViewer.tsx
index 30a6f53c..d26ac0b7 100644
--- a/frontend/components/dashboard/DashboardViewer.tsx
+++ b/frontend/components/dashboard/DashboardViewer.tsx
@@ -653,27 +653,10 @@ function ViewerElement({ element, data, isLoading, onRefresh, isMobile, canvasWi
       >
         {element.showHeader !== false && (
           <div className="flex items-center justify-between px-2 py-1">
-            <h3 className="text-foreground text-xs font-semibold">{element.customTitle || element.title}</h3>
-            <button
-              onClick={onRefresh}
-              disabled={isLoading}
-              className="text-muted-foreground hover:text-foreground transition-colors disabled:opacity-50"
-              title="새로고침"
-            >
-              <svg
-                className={`h-3 w-3 ${isLoading ? "animate-spin" : ""}`}
-                fill="none"
-                viewBox="0 0 24 24"
-                stroke="currentColor"
-              >
-                <path
-                  strokeLinecap="round"
-                  strokeLinejoin="round"
-                  strokeWidth={2}
-                  d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"
-                />
-              </svg>
-            </button>
+            {/* map-summary-v2는 customTitle이 없으면 제목 숨김 */}
+            {element.subtype === "map-summary-v2" && !element.customTitle ? null : (
+              <h3 className="text-foreground text-xs font-semibold">{element.customTitle || element.title}</h3>
+            )}
           </div>
         )}
         <div className={element.showHeader !== false ? "p-2" : "p-2"} style={{ minHeight: "250px" }}>
@@ -716,27 +699,10 @@ function ViewerElement({ element, data, isLoading, onRefresh, isMobile, canvasWi
     >
       {element.showHeader !== false && (
         <div className="flex items-center justify-between px-2 py-1">
-          <h3 className="text-foreground text-xs font-semibold">{element.customTitle || element.title}</h3>
-          <button
-            onClick={onRefresh}
-            disabled={isLoading}
-            className="text-muted-foreground hover:text-foreground transition-colors disabled:opacity-50"
-            title="새로고침"
-          >
-            <svg
-              className={`h-3 w-3 ${isLoading ? "animate-spin" : ""}`}
-              fill="none"
-              viewBox="0 0 24 24"
-              stroke="currentColor"
-            >
-              <path
-                strokeLinecap="round"
-                strokeLinejoin="round"
-                strokeWidth={2}
-                d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"
-              />
-            </svg>
-          </button>
+          {/* map-summary-v2는 customTitle이 없으면 제목 숨김 */}
+          {element.subtype === "map-summary-v2" && !element.customTitle ? null : (
+            <h3 className="text-foreground text-xs font-semibold">{element.customTitle || element.title}</h3>
+          )}
         </div>
       )}
       <div className={element.showHeader !== false ? "h-[calc(100%-32px)] w-full" : "h-full w-full"}>