diff --git a/.changeset/quiet-lions-unite.md b/.changeset/quiet-lions-unite.md
new file mode 100644
index 000000000000..723d773c0b02
--- /dev/null
+++ b/.changeset/quiet-lions-unite.md
@@ -0,0 +1,5 @@
+---
+'@rocket.chat/meteor': patch
+---
+
+Fixes sidepanel list not sorting by last message inside thread
diff --git a/apps/meteor/client/sidebarv2/RoomList/RoomListRow.tsx b/apps/meteor/client/sidebarv2/RoomList/RoomListRow.tsx
index 473fad9b0e42..af4a7f66ffde 100644
--- a/apps/meteor/client/sidebarv2/RoomList/RoomListRow.tsx
+++ b/apps/meteor/client/sidebarv2/RoomList/RoomListRow.tsx
@@ -1,4 +1,4 @@
-import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import type { TFunction } from 'i18next';
 import React, { memo, useMemo } from 'react';
 
@@ -17,7 +17,7 @@ type RoomListRowProps = {
 		sidebarViewMode: 'extended' | 'condensed' | 'medium';
 		isAnonymous: boolean;
 	};
-	item: ISubscription & IRoom;
+	item: SubscriptionWithRoom;
 };
 
 const RoomListRow = ({ data, item }: RoomListRowProps) => {
diff --git a/apps/meteor/client/sidebarv2/RoomList/SidebarItemTemplateWithData.tsx b/apps/meteor/client/sidebarv2/RoomList/SidebarItemTemplateWithData.tsx
index 5417d3075c1e..b0961aeeb616 100644
--- a/apps/meteor/client/sidebarv2/RoomList/SidebarItemTemplateWithData.tsx
+++ b/apps/meteor/client/sidebarv2/RoomList/SidebarItemTemplateWithData.tsx
@@ -1,6 +1,7 @@
-import type { IMessage, IRoom, ISubscription } from '@rocket.chat/core-typings';
+import type { IMessage } from '@rocket.chat/core-typings';
 import { isDirectMessageRoom, isMultipleDirectMessageRoom, isOmnichannelRoom, isVideoConfMessage } from '@rocket.chat/core-typings';
 import { SidebarV2Action, SidebarV2Actions, SidebarV2ItemBadge, SidebarV2ItemIcon } from '@rocket.chat/fuselage';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import { useLayout } from '@rocket.chat/ui-contexts';
 import type { TFunction } from 'i18next';
 import type { AllHTMLAttributes, ComponentType, ReactElement, ReactNode } from 'react';
@@ -16,7 +17,7 @@ import { OmnichannelBadges } from '../badges/OmnichannelBadges';
 import type { useAvatarTemplate } from '../hooks/useAvatarTemplate';
 import { useUnreadDisplay } from '../hooks/useUnreadDisplay';
 
-export const getMessage = (room: IRoom, lastMessage: IMessage | undefined, t: TFunction): string | undefined => {
+export const getMessage = (room: SubscriptionWithRoom, lastMessage: IMessage | undefined, t: TFunction): string | undefined => {
 	if (!lastMessage) {
 		return t('No_messages_yet');
 	}
@@ -62,7 +63,7 @@ type RoomListRowProps = {
 	// sidebarViewMode: 'extended';
 	isAnonymous?: boolean;
 
-	room: ISubscription & IRoom;
+	room: SubscriptionWithRoom;
 	id?: string;
 	/* @deprecated */
 	style?: AllHTMLAttributes<HTMLElement>['style'];
diff --git a/apps/meteor/client/sidebarv2/header/hooks/useSearchItems.ts b/apps/meteor/client/sidebarv2/header/hooks/useSearchItems.ts
index 7dfdb577dd9f..cc7bf02249b7 100644
--- a/apps/meteor/client/sidebarv2/header/hooks/useSearchItems.ts
+++ b/apps/meteor/client/sidebarv2/header/hooks/useSearchItems.ts
@@ -1,5 +1,5 @@
-import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
 import { escapeRegExp } from '@rocket.chat/string-helpers';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import { useMethod, useUserSubscriptions } from '@rocket.chat/ui-contexts';
 import { useQuery, type UseQueryResult } from '@tanstack/react-query';
 import { useMemo } from 'react';
@@ -16,7 +16,7 @@ const options = {
 	limit: LIMIT,
 } as const;
 
-export const useSearchItems = (filterText: string): UseQueryResult<(ISubscription & IRoom)[] | undefined, Error> => {
+export const useSearchItems = (filterText: string): UseQueryResult<SubscriptionWithRoom[] | undefined, Error> => {
 	const [, mention, name] = useMemo(() => filterText.match(/(@|#)?(.*)/i) || [], [filterText]);
 	const query = useMemo(() => {
 		const filterRegex = new RegExp(escapeRegExp(name), 'i');
diff --git a/apps/meteor/client/sidebarv2/hooks/useAvatarTemplate.tsx b/apps/meteor/client/sidebarv2/hooks/useAvatarTemplate.tsx
index e5bf780ee5b0..8d31f0818857 100644
--- a/apps/meteor/client/sidebarv2/hooks/useAvatarTemplate.tsx
+++ b/apps/meteor/client/sidebarv2/hooks/useAvatarTemplate.tsx
@@ -1,5 +1,5 @@
-import type { IRoom } from '@rocket.chat/core-typings';
 import { RoomAvatar } from '@rocket.chat/ui-avatar';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import { useUserPreference } from '@rocket.chat/ui-contexts';
 import type { ComponentType } from 'react';
 import React, { useMemo } from 'react';
@@ -7,7 +7,7 @@ import React, { useMemo } from 'react';
 export const useAvatarTemplate = (
 	sidebarViewMode?: 'extended' | 'medium' | 'condensed',
 	sidebarDisplayAvatar?: boolean,
-): null | ComponentType<IRoom & { rid: string }> => {
+): null | ComponentType<SubscriptionWithRoom & { rid: string }> => {
 	const sidebarViewModeFromSettings = useUserPreference<'extended' | 'medium' | 'condensed'>('sidebarViewMode');
 	const sidebarDisplayAvatarFromSettings = useUserPreference('sidebarDisplayAvatar');
 
@@ -30,7 +30,7 @@ export const useAvatarTemplate = (
 			}
 		})();
 
-		const renderRoomAvatar: ComponentType<IRoom & { rid: string }> = (room) => (
+		const renderRoomAvatar: ComponentType<SubscriptionWithRoom & { rid: string }> = (room) => (
 			<RoomAvatar size={size} room={{ ...room, _id: room.rid || room._id, type: room.t }} />
 		);
 
diff --git a/apps/meteor/client/sidebarv2/hooks/useRoomList.ts b/apps/meteor/client/sidebarv2/hooks/useRoomList.ts
index 921d956147ba..bebaf962ecf3 100644
--- a/apps/meteor/client/sidebarv2/hooks/useRoomList.ts
+++ b/apps/meteor/client/sidebarv2/hooks/useRoomList.ts
@@ -1,4 +1,4 @@
-import type { ILivechatInquiryRecord, IRoom, ISubscription } from '@rocket.chat/core-typings';
+import type { ILivechatInquiryRecord } from '@rocket.chat/core-typings';
 import { useDebouncedValue } from '@rocket.chat/fuselage-hooks';
 import type { SubscriptionWithRoom, TranslationKey } from '@rocket.chat/ui-contexts';
 import { useUserPreference, useUserSubscriptions, useSetting } from '@rocket.chat/ui-contexts';
@@ -28,7 +28,7 @@ const order = [
 ] as const;
 
 type useRoomListReturnType = {
-	roomList: Array<ISubscription & IRoom>;
+	roomList: Array<SubscriptionWithRoom>;
 	groupsCount: number[];
 	groupsList: TranslationKey[];
 	groupedUnreadInfo: Pick<
diff --git a/apps/meteor/client/sidebarv2/search/Row.tsx b/apps/meteor/client/sidebarv2/search/Row.tsx
index c0d332c5fa7e..1cd61299dea3 100644
--- a/apps/meteor/client/sidebarv2/search/Row.tsx
+++ b/apps/meteor/client/sidebarv2/search/Row.tsx
@@ -1,4 +1,4 @@
-import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import type { ReactElement } from 'react';
 import React, { memo } from 'react';
 
@@ -6,7 +6,7 @@ import UserItem from './UserItem';
 import SidebarItemTemplateWithData from '../RoomList/SidebarItemTemplateWithData';
 
 type RowProps = {
-	item: ISubscription & IRoom;
+	item: SubscriptionWithRoom;
 	data: Record<string, any>;
 };
 
diff --git a/apps/meteor/client/views/room/Sidepanel/SidepanelItem/RoomSidepanelItem.tsx b/apps/meteor/client/views/room/Sidepanel/SidepanelItem/RoomSidepanelItem.tsx
index 4181b13765de..b17db4fc7082 100644
--- a/apps/meteor/client/views/room/Sidepanel/SidepanelItem/RoomSidepanelItem.tsx
+++ b/apps/meteor/client/views/room/Sidepanel/SidepanelItem/RoomSidepanelItem.tsx
@@ -1,5 +1,4 @@
-import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
-import { useUserSubscription } from '@rocket.chat/ui-contexts';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import React, { memo } from 'react';
 
 import { goToRoomById } from '../../../../lib/utils/goToRoomById';
@@ -8,20 +7,15 @@ import { useItemData } from '../hooks/useItemData';
 
 type RoomSidepanelItemProps = {
 	openedRoom?: string;
-	room: IRoom;
+	room: SubscriptionWithRoom;
 	parentRid: string;
 	viewMode?: 'extended' | 'medium' | 'condensed';
 };
 
 const RoomSidepanelItem = ({ room, openedRoom, viewMode }: RoomSidepanelItemProps) => {
 	const SidepanelItem = useTemplateByViewMode();
-	const subscription = useUserSubscription(room._id);
 
-	const itemData = useItemData({ ...room, ...subscription } as ISubscription & IRoom, { viewMode, openedRoom }); // as any because of divergent and overlaping timestamp types in subs and room (type Date vs type string)
-
-	if (!subscription) {
-		return <SidepanelItem onClick={goToRoomById} is='a' {...itemData} />;
-	}
+	const itemData = useItemData(room, { viewMode, openedRoom });
 
 	return <SidepanelItem onClick={goToRoomById} {...itemData} />;
 };
diff --git a/apps/meteor/client/views/room/Sidepanel/hooks/useItemData.tsx b/apps/meteor/client/views/room/Sidepanel/hooks/useItemData.tsx
index bdf3ceb65ee6..06d89c1cfde5 100644
--- a/apps/meteor/client/views/room/Sidepanel/hooks/useItemData.tsx
+++ b/apps/meteor/client/views/room/Sidepanel/hooks/useItemData.tsx
@@ -1,5 +1,5 @@
-import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
 import { SidebarV2ItemBadge as SidebarItemBadge, SidebarV2ItemIcon as SidebarItemIcon } from '@rocket.chat/fuselage';
+import type { SubscriptionWithRoom } from '@rocket.chat/ui-contexts';
 import React, { useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
 
@@ -10,7 +10,7 @@ import { useAvatarTemplate } from '../../../../sidebarv2/hooks/useAvatarTemplate
 import { useUnreadDisplay } from '../../../../sidebarv2/hooks/useUnreadDisplay';
 
 export const useItemData = (
-	room: ISubscription & IRoom,
+	room: SubscriptionWithRoom,
 	{ openedRoom, viewMode }: { openedRoom: string | undefined; viewMode?: 'extended' | 'medium' | 'condensed' },
 ) => {
 	const { t } = useTranslation();
diff --git a/apps/meteor/client/views/room/Sidepanel/hooks/useTeamslistChildren.ts b/apps/meteor/client/views/room/Sidepanel/hooks/useTeamslistChildren.ts
index e186a3b0a806..f18753ed15c1 100644
--- a/apps/meteor/client/views/room/Sidepanel/hooks/useTeamslistChildren.ts
+++ b/apps/meteor/client/views/room/Sidepanel/hooks/useTeamslistChildren.ts
@@ -1,9 +1,9 @@
-import type { IRoom } from '@rocket.chat/core-typings';
+import type { ISubscription } from '@rocket.chat/core-typings';
 import { useQuery } from '@tanstack/react-query';
 import type { Mongo } from 'meteor/mongo';
 import { useEffect, useMemo } from 'react';
 
-import { Rooms } from '../../../../../app/models/client';
+import { Subscriptions } from '../../../../../app/models/client';
 import { useSortQueryOptions } from '../../../../hooks/useSortQueryOptions';
 
 export const useTeamsListChildrenUpdate = (
@@ -14,7 +14,7 @@ export const useTeamsListChildrenUpdate = (
 	const options = useSortQueryOptions();
 
 	const query = useMemo(() => {
-		const query: Mongo.Selector<IRoom> = {
+		const query: Mongo.Selector<ISubscription> = {
 			$or: [
 				{
 					_id: parentRid,
@@ -38,7 +38,7 @@ export const useTeamsListChildrenUpdate = (
 
 	const result = useQuery({
 		queryKey: ['sidepanel', 'list', parentRid, sidepanelItems, options],
-		queryFn: () => Rooms.find(query, options).fetch(),
+		queryFn: () => Subscriptions.find(query, options).fetch(),
 		enabled: sidepanelItems !== null && teamId !== null,
 		refetchInterval: 5 * 60 * 1000,
 		keepPreviousData: true,
@@ -47,7 +47,7 @@ export const useTeamsListChildrenUpdate = (
 	const { refetch } = result;
 
 	useEffect(() => {
-		const liveQueryHandle = Rooms.find(query).observe({
+		const liveQueryHandle = Subscriptions.find(query).observe({
 			added: () => queueMicrotask(() => refetch({ exact: false })),
 			changed: () => queueMicrotask(() => refetch({ exact: false })),
 			removed: () => queueMicrotask(() => refetch({ exact: false })),
diff --git a/apps/meteor/tests/e2e/feature-preview.spec.ts b/apps/meteor/tests/e2e/feature-preview.spec.ts
index 4e6b62827c85..85969debb8fc 100644
--- a/apps/meteor/tests/e2e/feature-preview.spec.ts
+++ b/apps/meteor/tests/e2e/feature-preview.spec.ts
@@ -280,8 +280,7 @@ test.describe.serial('feature preview', () => {
 			await expect(poHomeChannel.sidepanel.getItemByName(targetChannel)).toBeVisible();
 		});
 
-		// remove .fail after fix
-		test.fail('should sort by last message even if unread message is inside thread', async ({ page, browser }) => {
+		test('should sort by last message even if unread message is inside thread', async ({ page, browser }) => {
 			const user1Page = await browser.newPage({ storageState: Users.user1.state });
 			const user1Channel = new HomeChannel(user1Page);