From 44c0ec7847963d2757001dec418eb2e1d16f10cb Mon Sep 17 00:00:00 2001
From: LukeParkerDev <10430890+Hona@users.noreply.github.com>
Date: Wed, 13 May 2026 13:54:07 +1000
Subject: [PATCH] fix(app): simplify timeline bottom anchor

---
 packages/app/src/pages/session/message-timeline.tsx | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/app/src/pages/session/message-timeline.tsx b/packages/app/src/pages/session/message-timeline.tsx
index 6ef62ea22..f8134976a 100644
--- a/packages/app/src/pages/session/message-timeline.tsx
+++ b/packages/app/src/pages/session/message-timeline.tsx
@@ -721,14 +721,13 @@ export function MessageTimeline(props: {
     const key = sessionKey()
     if (bottomAnchorSessionKey === key) return
     if (!virtualizer) return
-    if (timelineRowKeys().length === 0) return
+    const keys = timelineRowKeys()
+    if (keys.length === 0) return
     bottomAnchorSessionKey = key
     if (!props.shouldAnchorBottom()) return
-    virtualizer.scrollToIndex(timelineRowKeys().length - 1, { align: "end" })
+    virtualizer.scrollToIndex(keys.length - 1, { align: "end" })
   }
 
-  createEffect(maybeAnchorBottom)
-
   createEffect(
     on(
       () => [sessionKey(), timelineRowKeys()] as const,
@@ -739,6 +738,7 @@ export function MessageTimeline(props: {
         if (virtualizer) {
           virtualizerSessionKey = cacheSessionKey
           virtualizerRowKeys = cacheRowKeys
+          maybeAnchorBottom()
         }
       },
       { defer: true },