Joined room leaves me at a blank view with no timeline or composer

[MadLittleMods]

Steps to reproduce

Joined room leaves me at a blank view with no timeline or composer. The room view never recovered until switching rooms.

1. Join new room
2. Get stuck on blank screen

While joining, there was a little toast in the corner that appeared for a second saying something about my server not responding or working correctly. Here is the series of network requests:

• ❌ 404 response for GET https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/event/%24fhDEdtZGi8I6aP0PEn3ZmV4WHtuGGiSTgrXjngEByVw
• ❌ 403 response for GET https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/initialSync?limit=20
  • These two might be from trying to get a room preview. The room wasn't preview-able.
• ✅ 200 response for POST https://matrix-client.matrix.org/_matrix/client/r0/join/!dlUJvnxTqziXgGwAaW%3Amatrix.org?server_name=matrix.org&server_name=element.io&server_name=connecteu.rs
• ✅ 200 response for https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/event/%24fhDEdtZGi8I6aP0PEn3ZmV4WHtuGGiSTgrXjngEByVw
• ✅ 200 response for https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/event/%24fhDEdtZGi8I6aP0PEn3ZmV4WHtuGGiSTgrXjngEByVw
• ✅ 200 response for https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/context/%24fhDEdtZGi8I6aP0PEn3ZmV4WHtuGGiSTgrXjngEByVw?filter=%7B%22lazy_load_members%22%3Atrue%7D
• ✅ 200 response for https://matrix-client.matrix.org/_matrix/client/r0/rooms/!dlUJvnxTqziXgGwAaW%3Amatrix.org/members?not_membership=leave&at=s3386284912_757284974_2005978_1675473251_1703397109_3686724_634899543_5580470815_0
• 200 PUT https://matrix-client.matrix.org/_matrix/client/r0/pushrules/global/room/!dlUJvnxTqziXgGwAaW%3Amatrix.org`
• ❌ 404 response for PUT https://matrix-client.matrix.org/_matrix/client/r0/pushrules/global/room/!dlUJvnxTqziXgGwAaW%3Amatrix.org/enabled

Outcome

What did you expect?

Joining a room lands me in the room with the timeline and composer visible

What happened instead?

Stuck at a blank screen (only room header visible) and have to switch rooms. The room did appear after switching back to it

Debug logs: https://github.com/matrix-org/element-web-rageshakes/issues/16397

Operating system

Windows 10

Browser information

Chrome 106.0.5249.119

URL for webapp

https://develop.element.io/

Application version

Element version: 2f49467-react-de51bfdcb54e-js-9f2f08dfd3de Olm version: 3.2.12

Homeserver

matrix.org

Will you send logs?

Yes, see https://github.com/matrix-org/element-web-rageshakes/issues/16397