On page load, web view doesn't scroll to last message

[jman-schief]

Describe the bug

Using app.cinny.in 4.2.3

When I load a room where I am sure there are no new messages, the view stops a few messages before the end and shows the "Jump to latest". I am not sure about the logic the web view follows to stop showing newer messages.

More observations:

• I am sure there are no unread messages (accessing the room with another client, I am correctly taken to the last message)
• Clicking on "Message Search" and then back into the room, correctly scrolls down to the last message
• "clear cache and reload" doesn't seem to help
• Zoom browser is 100%
• Doesn't seem to happen with direct 1:1 chats

Reproduction

1. Open app.cinny.in
2. Enter a room
3. Loading messages stops at mid-way

Expected behavior

When opening app.cinny.in I expect to be taken to the last unread message

Platform and versions

1. Linux Debian/trixie (testing channel)
2. Mozilla Firefox 134.0b10
3. Cinny 4.2.3 (app.cinny.in)
4. Matrix homeserver: (own instance) synapse v1.121.1

Additional context

Thanks for you work on Cinny!