diff --git a/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.html b/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.html
index e9da09fc..b6c5d898 100644
--- a/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.html
+++ b/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.html
@@ -16,7 +16,7 @@
     <div
       *ngIf="eventRemained && !!eventList && eventList.length > 0"
       class="message-row view-previous"
-      [class.hide]="!scrollUpInitalized"
+      [class.hide]="!showMore"
     >
       <button mat-button (click)="onClickMore($event)" class="bg-accent-dark">
         <svg
diff --git a/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.ts b/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.ts
index 37cccae8..05a4b789 100644
--- a/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.ts
+++ b/projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.ts
@@ -159,7 +159,7 @@ export class MessagesComponent implements OnInit, OnDestroy {
   existReadToHereEvent = true;
   hidden = false;
   swapped = false;
-  initalized = false;
+  showMore = false;
 
   constructor(
     private logger: NGXLogger,
@@ -176,7 +176,7 @@ export class MessagesComponent implements OnInit, OnDestroy {
     });
     this.roomInfoSubscription = this.roomInfo$.subscribe(roomInfo => {
       this.roomInfo = roomInfo;
-      this.initalized = false;
+      this.showMore = false;
 
       /** [S] initializing by changed room */
       // reset :: roomLastEventSeq
@@ -441,10 +441,10 @@ export class MessagesComponent implements OnInit, OnDestroy {
       0,
       () => {
         setTimeout(() => {
+          this.postSwapScroll(useHide, useSwap);
           if (!!postCallback) {
             postCallback();
           }
-          this.postSwapScroll(useHide, useSwap);
         });
       }
     );
@@ -549,7 +549,7 @@ export class MessagesComponent implements OnInit, OnDestroy {
           this.eventList[this.eventList.length - 1],
           () => {},
           () => {
-            this.initalized = true;
+            this.showMore = true;
           },
           -1 === this.virtualScroller.viewPortInfo.endIndex ||
             !isInViewPortItems,