Missing reactions in room (main timeline)

[MadLittleMods]

Steps to reproduce

1. Notice missing reactions on a message
2. Reproduced on Element Web and other Element Desktop clients
3. Consistent after update/refresh and switching rooms

Outcome

What did you expect?

All reactions should be visible

What happened instead?

No reactions show up on the message and the reaction events don't even show up as hidden events in the timeline

All of the missing reactions correspond to these rageshake log entries which indicate the events are seen by the client but being mistakenly ignored in the main timeline (details in the rageshake)

EventTimelineSet.addEventToTimeline: Ignoring event=$abc that does not belong in timeline=!foo:2023-06-19T22:17:22.759Z timelineSet(threadId=undefined)

---

Probably related to:

• Missing reactions for some messages #25596

Operating system

Manjaro Linux (Arch-based)

Browser information

Chrome Version 114.0.5735.133

URL for webapp

https://develop.element.io/

Application version

Element version: 0417473-react-a491795aa7ed-js-80cdbe1058c1 Olm version: 3.2.14

Homeserver

matrix.org

Will you send logs?

Yes -> https://github.com/matrix-org/element-web-rageshakes/issues/21918, https://github.com/matrix-org/element-web-rageshakes/issues/21931

[weeman1337]

Thank you for your report.

It seems you're not the only one to have come across this bug, as it's been reported previously. I'm going to close this issue now so we can focus on the older issue. Please watch, vote or comment on that issue if there is any additional information you can provide.

[weeman1337]

Duplicate of #25596

[MadLittleMods]

Another set of debug logs with the extra info from matrix-org/matrix-js-sdk#3494 -> https://github.com/matrix-org/element-web-rageshakes/issues/21931

Here are the logs around one missing reaction on the original message: $p_giIbORbdY2Mk0f6mSFZOAfcG24eqIDsG-8PT7_E7E

2023-06-20T17:42:26.548Z D Room::eventShouldLiveIn: eventId=$p_giIbORbdY2Mk0f6mSFZOAfcG24eqIDsG-8PT7_E7E parentEventId=$nH4JpeIhEuiY9ets2cgYn4IvsyQ_feCfZj-6MVP81YE found=true

2023-06-20T17:42:26.550Z D Room::eventShouldLiveIn: eventId=$p_giIbORbdY2Mk0f6mSFZOAfcG24eqIDsG-8PT7_E7E parentEventId=$nH4JpeIhEuiY9ets2cgYn4IvsyQ_feCfZj-6MVP81YE found=false
2023-06-20T17:42:26.550Z D Room::eventShouldLiveIn: eventId=$p_giIbORbdY2Mk0f6mSFZOAfcG24eqIDsG-8PT7_E7E belongs to an unknown timeline
2023-06-20T17:42:26.550Z W EventTimelineSet.addEventToTimeline: Ignoring event=$p_giIbORbdY2Mk0f6mSFZOAfcG24eqIDsG-8PT7_E7E that does not belong in timeline=!QKLszEbjJygAduTMZK:librepush.net:2023-06-20T17:40:23.927Z timelineSet(threadId=undefined)

Here is a missing reaction on the edited message: $NccBSsH59-FnLgOiALNk6sY4pPhUyUnHyrIg3UlvNNo

2023-06-20T17:40:40.014Z D Room::eventShouldLiveIn: eventId=$NccBSsH59-FnLgOiALNk6sY4pPhUyUnHyrIg3UlvNNo parentEventId=$nH4JpeIhEuiY9ets2cgYn4IvsyQ_feCfZj-6MVP81YE found=true
2023-06-20T17:40:40.014Z D Room::eventShouldLiveIn: eventId=$nH4JpeIhEuiY9ets2cgYn4IvsyQ_feCfZj-6MVP81YE not a relation
2023-06-20T17:40:40.014Z D Room::eventShouldLiveIn: eventId=$NccBSsH59-FnLgOiALNk6sY4pPhUyUnHyrIg3UlvNNo parentEventId=$nH4JpeIhEuiY9ets2cgYn4IvsyQ_feCfZj-6MVP81YE found=false
2023-06-20T17:40:40.014Z D Room::eventShouldLiveIn: eventId=$NccBSsH59-FnLgOiALNk6sY4pPhUyUnHyrIg3UlvNNo belongs to an unknown timeline
2023-06-20T17:40:40.014Z W EventTimelineSet.addEventToTimeline: Ignoring event=$NccBSsH59-FnLgOiALNk6sY4pPhUyUnHyrIg3UlvNNo that does not belong in timeline=!QKLszEbjJygAduTMZK:librepush.net:2023-06-20T17:40:23.927Z timelineSet(threadId=undefined)