Sending a message in this room flashes it on screen and it disappears

### Steps to reproduce

Just type in a room (only one room misbehaving)

### Outcome

#### What did you expect?

Message to be sent

#### What happened instead?

Message quickly flashes on screen and then disappears. Only the previous messages are visible. Other users can see the message so server gets it.

### Operating system

Windows

### Browser information

Firefox 141.01

### URL for webapp

_No response_

### Application version

Element web 1.11.110

### Homeserver

hacklab.fi

### Will you send logs?

Yes