New Room List: Scroll jumps after opening a menu

[robintown]

Steps to reproduce

1. Use the New Room List labs feature
2. Open the 'More Options' menu on one of your rooms
3. Close the menu
4. Scroll the room list

Outcome

What did you expect?

Smooth scrolling

What happened instead?

Lots of scroll jumps - the workaround is to switch spaces.

Screencast.From.2025-06-16.14-45-54.webm

Operating system

NixOS 25.05

Browser information

Firefox 139.0

URL for webapp

develop.element.io

Application version

Element version: 28a232e-js-adaf92162377 Crypto version: Rust SDK 0.11.1 (9e3bf58), Vodozemac 0.9.0

Homeserver

Not relevant

Will you send logs?

No

[florianduros]

I assume this is due to the usage of both of our roving tab index component/hook and react-virtualized. Like in the memberlist.