Changes to display names do not apply consistently to all rooms

[deniseal]

Description

When changing display name the change applies to certain rooms, but not all the rooms I'm in.

Steps to reproduce

• change display name via Element iOS app or Element desktop app (same issue happens regardless of client)
• change applies without errors but not consistently to every room

Homeserver

element.io

Synapse Version

n/a

Installation Method

Docker (matrixdotorg/synapse)

Database

n/a

Workers

I don't know

Platform

n/a

Configuration

No response

Relevant log output

Do not have access to logs

Anything else that would be useful to know?

No response

[erikjohnston]

This is likely due to the renaming being interrupted before it completed. This should be fixed by #17074