diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
index e067daba..92487036 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
@@ -239,6 +239,7 @@
         [minShowReadHere]="
           environment.productConfig.CommonSetting.readHereShowMinimumEventCount
         "
+        [initRoomLastEventSeq]="initRoomLastEventSeq"
         [translationSimpleview]="translationSimpleview"
         (moreEvent)="onMoreEvent($event)"
         (massDetail)="onMassDetail($event)"
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 95d61e71..739e1079 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
@@ -192,6 +192,7 @@ export class MessagesComponent implements OnInit, OnDestroy, AfterViewInit {
   /** About ReadHere */
   firstcheckReadHere = true;
   clearReadHere = false;
+  initRoomLastEventSeq: number;
 
   snackBarPreviewEvent: MatSnackBarRef<SimpleSnackBar>;
 
@@ -358,7 +359,16 @@ export class MessagesComponent implements OnInit, OnDestroy, AfterViewInit {
     this.eventInfoStatusSubscription = this.store
       .pipe(
         select(AppStore.MessengerSelector.EventSelector.infoStatus),
-        tap(res => (this.eventInfoStatus = res))
+        tap(res => {
+          this.eventInfoStatus = res;
+
+          if (!!res) {
+            const elist = this.eventList;
+            if (res.baseSeq === 0 && elist.length > 0) {
+              this.initRoomLastEventSeq = elist[elist.length - 1].seq;
+            }
+          }
+        })
       )
       .subscribe();
 
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 fac5f2d6..403564f4 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
@@ -30,7 +30,6 @@ export class MessagesComponent implements OnInit {
   set eventList(elist: Info<EventJson>[]) {
     if (!!elist && elist.length > 0) {
       this.firstEventSeq = elist[0].seq;
-      this.lastEventSeq = elist[elist.length - 1].seq;
     }
 
     this.messages = elist;
@@ -52,6 +51,8 @@ export class MessagesComponent implements OnInit {
   @Input()
   minShowReadHere = 10;
   @Input()
+  initRoomLastEventSeq: number;
+  @Input()
   translationSimpleview = false;
 
   @Output()
@@ -86,7 +87,6 @@ export class MessagesComponent implements OnInit {
   moment = moment;
 
   firstEventSeq = 0;
-  lastEventSeq = 0;
   existReadHere = false;
 
   constructor(private logger: NGXLogger, private datePipe: DatePipe) {}
@@ -186,7 +186,8 @@ export class MessagesComponent implements OnInit {
     if (
       !!this.roomInfo &&
       !!this.roomInfo.lastReadEventSeq &&
-      this.lastEventSeq - this.roomInfo.lastReadEventSeq > 5
+      this.initRoomLastEventSeq - this.roomInfo.lastReadEventSeq >
+        this.minShowReadHere
     ) {
       if (
         this.roomInfo.roomType === RoomType.Single ||