Can't load this message (m.room.message) on switching rooms

[DMRobertson]

Steps to reproduce

I navigated from one room to another. (Internal to Element-the-organisation.)

Outcome

What did you expect?

Messages timeline to load without an error.

What happened instead?

I saw some of the room's timeline, but at the bottom:

This persisted even as newer messages arrived.

Operating system

Fedora 36

Application version

Element version: 1.10.12 Olm version: 3.2.8

How did you install the app?

https://flathub.org/apps/details/im.riot.Riot

Homeserver

matrix.org

Will you send logs?

Yes

[andybalaam]

I saw one of these today as well.

[DMRobertson]

Perhaps a duplicate of #22141?

[t3chguy]

2022-05-19T13:09:14.830Z E Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node. (NotFoundError | 8) doesn't look like it, but the logs don't really contain anything helpful

[turt2live]

this is also concerning:

2022-05-19T13:09:23.373Z W Event type not supported: type:m.room.encrypted isState:false

The removeChild could be a false-positive, but is also not fun to see in the logs.

Did it eventually fix itself eventually? From the logs it looks like the keys might have been missing at the time, so the event could have gone through the render pipeline as an unexpected event type.

[DMRobertson]

Did it eventually fix itself eventually?

I think so. I scrolled back in that room and didn't see the error message. Double checking just now I can't see it either.

[turt2live]

I'm even more inclined to blame this on a temporary decryption fail then. Unclear what would have caused that specifically.

[turt2live]

Presuming fixed or otherwise not an issue. If this happens again, please open a new issue with new information.