diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.ts
index 4d1f5bea..1111bdb9 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.ts
@@ -144,7 +144,9 @@ export class GroupComponent implements OnInit, OnDestroy {
       .pipe(
         select(AppStore.AccountSelector.AuthenticationSelector.loginRes),
         tap(loginRes => {
-          this.loginRes = loginRes;
+          if (!!loginRes) {
+            this.loginRes = loginRes;
+          }
         })
       )
       .subscribe();
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
index 7403cfce..c09d0e0c 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
@@ -116,6 +116,8 @@ export class OrganizationComponent
 
   @ViewChild('cvsvDeptUser', { static: false })
   cvsvDeptUser: CdkVirtualScrollViewport;
+  @ViewChild('cvsvDeptSearchUser', { static: false })
+  cvsvDeptSearchUser: CdkVirtualScrollViewport;
 
   @ViewChild(PerfectScrollbarDirective, { static: false })
   psDirectiveRef?: PerfectScrollbarDirective;
@@ -290,15 +292,21 @@ export class OrganizationComponent
                   this.selectedDepartmentProcessing = false;
                   // 검색 결과에 따른 프레즌스 조회.
                   const userSeqList: number[] = [];
-                  this.searchUserInfos.map(user => userSeqList.push(user.seq));
                   if (userSeqList.length > 0) {
                     this.store.dispatch(
                       StatusStore.bulkInfo({
                         divCd: 'orgSrch',
-                        userSeqs: userSeqList
+                        userSeqs: this.searchUserInfos.map(user => user.seq)
                       })
                     );
                   }
+
+                  if (!!this.cvsvDeptSearchUser) {
+                    this.cvsvDeptSearchUser.scrollToOffset(0);
+                  }
+                  if (!!this.psDirectiveRef) {
+                    this.psDirectiveRef.update();
+                  }
                 }
                 break;
             }
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.ts
index 070ee530..061488b2 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.ts
@@ -119,6 +119,8 @@ export class MessagesComponent implements OnInit, OnDestroy, AfterViewInit {
   openProfile = new EventEmitter<{
     userSeq: number;
   }>();
+  @Output()
+  closeRightDrawer = new EventEmitter();
 
   @ViewChild('chatForm', { static: false })
   private chatForm: UCapUiChatFormComponent;
@@ -410,6 +412,9 @@ export class MessagesComponent implements OnInit, OnDestroy, AfterViewInit {
    * 채팅방의 여러 팝업들을 닫아준다.
    */
   clearView() {
+    // Right Drawer closed..
+    this.closeRightDrawer.emit();
+
     // Sticker Selector Clear..
     this.isShowStickerSelector = false;
     this.selectedSticker = undefined;
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/album-box.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/album-box.component.ts
index d0d907b7..d40948a4 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/album-box.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/album-box.component.ts
@@ -100,6 +100,7 @@ export class AlbumBoxComponent implements OnInit, OnDestroy {
         tap(([roomInfo, fileInfoList, fileInfoCheckList]) => {
           this.fileInfoList = fileInfoList.filter(fileInfo => {
             if (
+              !!roomInfo &&
               fileInfo.roomSeq === roomInfo.roomSeq &&
               (fileInfo.type === FileType.Image ||
                 fileInfo.type === FileType.Video)
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/file-box.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/file-box.component.ts
index 6c2ec65a..d17bc5bc 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/file-box.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/right-drawer/file-box.component.ts
@@ -109,6 +109,7 @@ export class FileBoxComponent implements OnInit, OnDestroy {
 
           this.fileInfoList = fileInfoList.filter(fileInfo => {
             if (
+              !!roomInfo &&
               fileInfo.roomSeq === roomInfo.roomSeq &&
               (fileInfo.type === FileType.File ||
                 fileInfo.type === FileType.Sound)
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/native/components/top-bar.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/native/components/top-bar.component.ts
index dc42cd11..f002796e 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/native/components/top-bar.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/native/components/top-bar.component.ts
@@ -113,9 +113,7 @@ export class TopBarComponent implements OnInit, OnDestroy {
           >(KEY_VER_INFO);
 
           // WebLink init..
-          if (!this.weblink || this.weblink.length === 0) {
-            this.initWebLink();
-          }
+          this.initWebLink();
         })
       )
       .subscribe();
diff --git a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.html b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.html
index 878bd84f..8945d47b 100644
--- a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.html
+++ b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.html
@@ -37,6 +37,7 @@
           <app-layout-messenger-messages
             *ngIf="!!(this.selectedChat$ | async)"
             (openProfile)="onClickOpenProfile($event)"
+            (closeRightDrawer)="onCloseRightDrawer()"
           ></app-layout-messenger-messages>
         </div>
         <mat-drawer