diff --git a/packages/frontend/src/components/MkDrive.vue b/packages/frontend/src/components/MkDrive.vue
index 9fe1c7ef21..8a33dfb842 100644
--- a/packages/frontend/src/components/MkDrive.vue
+++ b/packages/frontend/src/components/MkDrive.vue
@@ -145,7 +145,7 @@ import { claimAchievement } from '@/utility/achievements.js';
 import { prefer } from '@/preferences.js';
 import { chooseFileFromPcAndUpload, selectDriveFolder } from '@/utility/drive.js';
 import { store } from '@/store.js';
-import { isSeparatorNeeded, getSeparatorInfo, makeDateGroupedTimelineComputedRef } from '@/utility/timeline-date-separate.js';
+import { makeDateGroupedTimelineComputedRef } from '@/utility/timeline-date-separate.js';
 import { globalEvents, useGlobalEvent } from '@/events.js';
 import { checkDragDataType, getDragData, setDragData } from '@/drag-and-drop.js';
 import { getDriveFileMenu } from '@/utility/get-drive-file-menu.js';
diff --git a/packages/frontend/src/components/MkNotesTimeline.vue b/packages/frontend/src/components/MkNotesTimeline.vue
index 83af7db26f..42d44dffdb 100644
--- a/packages/frontend/src/components/MkNotesTimeline.vue
+++ b/packages/frontend/src/components/MkNotesTimeline.vue
@@ -10,15 +10,22 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<template #default="{ items: notes }">
 		<div :class="[$style.root, { [$style.noGap]: noGap, '_gaps': !noGap }]">
 			<template v-for="(note, i) in notes" :key="note.id">
-				<div v-if="i > 0 && isSeparatorNeeded(paginator.items.value[i -1].createdAt, note.createdAt)" :data-scroll-anchor="note.id">
-					<div :class="$style.date">
-						<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt).prevText }}</span>
+				<div
+					v-if="i > 0 && isSeparatorNeeded(paginator.items.value[i - 1].createdAt, note.createdAt)"
+					:data-scroll-anchor="note.id"
+					:class="{ '_gaps': !noGap }"
+				>
+					<div :class="[$style.date, { [$style.noGap]: noGap }]">
+						<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i - 1].createdAt, note.createdAt)?.prevText }}</span>
 						<span style="height: 1em; width: 1px; background: var(--MI_THEME-divider);"></span>
-						<span>{{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt).nextText }} <i class="ti ti-chevron-down"></i></span>
+						<span>{{ getSeparatorInfo(paginator.items.value[i - 1].createdAt, note.createdAt)?.nextText }} <i class="ti ti-chevron-down"></i></span>
 					</div>
 					<MkNote :class="$style.note" :note="note" :withHardMute="true"/>
+					<div v-if="note._shouldInsertAd_" :class="$style.ad">
+						<MkAd :preferForms="['horizontal', 'horizontal-big']"/>
+					</div>
 				</div>
-				<div v-else-if="note._shouldInsertAd_" :class="[$style.noteWithAd, { '_gaps': !noGap }]" :data-scroll-anchor="note.id">
+				<div v-else-if="note._shouldInsertAd_" :class="{ '_gaps': !noGap }" :data-scroll-anchor="note.id">
 					<MkNote :class="$style.note" :note="note" :withHardMute="true"/>
 					<div :class="$style.ad">
 						<MkAd :preferForms="['horizontal', 'horizontal-big']"/>
@@ -103,7 +110,10 @@ defineExpose({
 	opacity: 0.75;
 	padding: 8px 8px;
 	margin: 0 auto;
-	border-bottom: solid 0.5px var(--MI_THEME-divider);
+
+	&.noGap {
+		border-bottom: solid 0.5px var(--MI_THEME-divider);
+	}
 }
 
 .ad:empty {
diff --git a/packages/frontend/src/components/MkStreamingNotesTimeline.vue b/packages/frontend/src/components/MkStreamingNotesTimeline.vue
index 3e50bdefd2..c2b4d6cd04 100644
--- a/packages/frontend/src/components/MkStreamingNotesTimeline.vue
+++ b/packages/frontend/src/components/MkStreamingNotesTimeline.vue
@@ -32,9 +32,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<template v-for="(note, i) in paginator.items.value" :key="note.id">
 				<div v-if="i > 0 && isSeparatorNeeded(paginator.items.value[i -1].createdAt, note.createdAt)" :data-scroll-anchor="note.id">
 					<div :class="$style.date">
-						<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt).prevText }}</span>
+						<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt)?.prevText }}</span>
 						<span style="height: 1em; width: 1px; background: var(--MI_THEME-divider);"></span>
-						<span>{{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt).nextText }} <i class="ti ti-chevron-down"></i></span>
+						<span>{{ getSeparatorInfo(paginator.items.value[i -1].createdAt, note.createdAt)?.nextText }} <i class="ti ti-chevron-down"></i></span>
 					</div>
 					<MkNote :class="$style.note" :note="note" :withHardMute="true"/>
 				</div>
diff --git a/packages/frontend/src/components/MkStreamingNotificationsTimeline.vue b/packages/frontend/src/components/MkStreamingNotificationsTimeline.vue
index 4617e659c8..ac1f06619a 100644
--- a/packages/frontend/src/components/MkStreamingNotificationsTimeline.vue
+++ b/packages/frontend/src/components/MkStreamingNotificationsTimeline.vue
@@ -25,11 +25,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 		>
 			<div v-for="(notification, i) in paginator.items.value" :key="notification.id" :data-scroll-anchor="notification.id" :class="$style.item">
 				<div v-if="i > 0 && isSeparatorNeeded(paginator.items.value[i -1].createdAt, notification.createdAt)" :class="$style.date">
-					<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i -1].createdAt, notification.createdAt).prevText }}</span>
+					<span><i class="ti ti-chevron-up"></i> {{ getSeparatorInfo(paginator.items.value[i -1].createdAt, notification.createdAt)?.prevText }}</span>
 					<span style="height: 1em; width: 1px; background: var(--MI_THEME-divider);"></span>
-					<span>{{ getSeparatorInfo(paginator.items.value[i -1].createdAt, notification.createdAt).nextText }} <i class="ti ti-chevron-down"></i></span>
+					<span>{{ getSeparatorInfo(paginator.items.value[i -1].createdAt, notification.createdAt)?.nextText }} <i class="ti ti-chevron-down"></i></span>
 				</div>
-				<MkNote v-if="['reply', 'quote', 'mention'].includes(notification.type)" :class="$style.content" :note="notification.note" :withHardMute="true"/>
+				<MkNote v-if="['reply', 'quote', 'mention'].includes(notification.type) && 'note' in notification" :class="$style.content" :note="notification.note" :withHardMute="true"/>
 				<XNotification v-else :class="$style.content" :notification="notification" :withTime="true" :full="true"/>
 			</div>
 		</component>