diff --git a/src/pages/home/report/ReportActionsList.tsx b/src/pages/home/report/ReportActionsList.tsx
index 9ff8762956d7..d01efdf28e9c 100644
--- a/src/pages/home/report/ReportActionsList.tsx
+++ b/src/pages/home/report/ReportActionsList.tsx
@@ -168,9 +168,11 @@ function ReportActionsList({
     const userActiveSince = useRef<string>(DateUtils.getDBTime());
     const lastMessageTime = useRef<string | null>(null);
     const [isVisible, setIsVisible] = useState(Visibility.isVisible());
+    const [messageManuallyMarkedUnread, setMessageManuallyMarkedUnread] = useState(0);
     const isFocused = useIsFocused();
 
     const [reportNameValuePairs] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT_NAME_VALUE_PAIRS}${report?.reportID ?? -1}`);
+    const [accountID] = useOnyx(ONYXKEYS.SESSION, {selector: (session) => session?.accountID ?? 0});
 
     useEffect(() => {
         const unsubscriber = Visibility.onVisibilityChange(() => {
@@ -210,6 +212,7 @@ function ReportActionsList({
     const [unreadMarkerTime, setUnreadMarkerTime] = useState(report.lastReadTime ?? '');
     useEffect(() => {
         setUnreadMarkerTime(report.lastReadTime ?? '');
+        setMessageManuallyMarkedUnread(0);
 
         // eslint-disable-next-line react-compiler/react-compiler, react-hooks/exhaustive-deps
     }, [report.reportID]);
@@ -222,9 +225,16 @@ function ReportActionsList({
             const nextMessage = sortedVisibleReportActions[index + 1];
             const isCurrentMessageUnread = isMessageUnread(reportAction, unreadMarkerTime);
             const isNextMessageRead = !nextMessage || !isMessageUnread(nextMessage, unreadMarkerTime);
-            const shouldDisplay = isCurrentMessageUnread && isNextMessageRead && !ReportActionsUtils.shouldHideNewMarker(reportAction);
-            const isWithinVisibleThreshold = scrollingVerticalOffset.current < MSG_VISIBLE_THRESHOLD ? reportAction.created < (userActiveSince.current ?? '') : true;
-            return shouldDisplay && isWithinVisibleThreshold;
+            let shouldDisplay = isCurrentMessageUnread && isNextMessageRead && !ReportActionsUtils.shouldHideNewMarker(reportAction);
+
+            if (shouldDisplay && !messageManuallyMarkedUnread) {
+                // Prevent displaying a new marker line when report action is of type "REPORT_PREVIEW" and last actor is the current user
+                const isFromCurrentUser = accountID === (ReportActionsUtils.isReportPreviewAction(reportAction) ? !reportAction.childLastActorAccountID : reportAction.actorAccountID);
+                const isWithinVisibleThreshold = scrollingVerticalOffset.current < MSG_VISIBLE_THRESHOLD ? reportAction.created < (userActiveSince.current ?? '') : true;
+                shouldDisplay = !isFromCurrentUser && isWithinVisibleThreshold;
+            }
+
+            return shouldDisplay;
         };
 
         // Scan through each visible report action until we find the appropriate action to show the unread marker
@@ -236,7 +246,7 @@ function ReportActionsList({
         }
 
         return null;
-    }, [sortedVisibleReportActions, unreadMarkerTime]);
+    }, [accountID, sortedVisibleReportActions, unreadMarkerTime, messageManuallyMarkedUnread]);
 
     /**
      * Subscribe to read/unread events and update our unreadMarkerTime
@@ -244,10 +254,11 @@ function ReportActionsList({
     useEffect(() => {
         const unreadActionSubscription = DeviceEventEmitter.addListener(`unreadAction_${report.reportID}`, (newLastReadTime: string) => {
             setUnreadMarkerTime(newLastReadTime);
-            userActiveSince.current = DateUtils.getDBTime();
+            setMessageManuallyMarkedUnread(new Date().getTime());
         });
         const readNewestActionSubscription = DeviceEventEmitter.addListener(`readNewestAction_${report.reportID}`, (newLastReadTime: string) => {
             setUnreadMarkerTime(newLastReadTime);
+            setMessageManuallyMarkedUnread(0);
         });
 
         return () => {
@@ -273,6 +284,7 @@ function ReportActionsList({
         }
 
         setUnreadMarkerTime(mostRecentReportActionCreated);
+        setMessageManuallyMarkedUnread(0);
 
         // eslint-disable-next-line react-compiler/react-compiler, react-hooks/exhaustive-deps
     }, [sortedVisibleReportActions]);