Maybe this is intentional behaviour, but when an effect like ‘Echo’ is applied to an Audio Group and user then mutes that group, you can still hear the sound until it dies out.

Expected result: When user enables Solo or Mute on an audio group, all the other channels should be silent regardless if there is an effect on them. If you have multiple Audio Groups with effects that have long decay times, it can be a bit confusing.

To reproduce:
- Create an Audio Group and apply and Audio Source to it
- Add an Echo effect on the Audio Group
- Hit Play
- Mute the Audio Group with the effect
- Observe that it takes a while before the Audio Group is properly "muted"