Display names update but then revert on refresh

[dbkr]

Steps to reproduce

1. Have two users that share a room
2. Change display name of user 1. See that it updates on user 2's screen
3. Refresh user 2 client shortly after.

Outcome

What did you expect?

User 2 sees user 2's new name before & after refresh

What happened instead?

After refresh, user 1's display name reverts to whatever it was before it was changed. Clear cache & reload fixes it.

Operating system

No response

Browser information

No response

URL for webapp

No response

Application version

No response

Homeserver

No response

Will you send logs?

Yes