Audio issue in active calls (one to one call) when switching between multiple calls

### Steps to reproduce

If a user is engaged in an active call in the web app and receives a new call from another user, there is a problem with the audio transmission. Specifically, when User B, currently on a call with User A, receives a new call from User C and answers it, User C cannot hear User B, even though User B can hear User C. Both parties can communicate as expected when User B switches back to the call with User A. When switching back to the call with User C, the audio issue resolves, and both B and C can hear each other.

### Outcome

Switching between calls should be seamless

### Operating system

_No response_

### Browser information

_No response_

### URL for webapp

app.element.io

### Application version

_No response_

### Homeserver

_No response_

### Will you send logs?

Yes