Timeline with Muted Audio Mixer does plays Audio briefly when loading FROM/TO another scene

- I have a Master Mixer and a Music Mixer (with the Volume Exposed)


- I have a TimeLine
- This timeline plays an AudioSource


- This AudioSource has an output to an AudioMixer called Music and has the Volume Control Exposed


- I use the command AudioMixer.SetFloat("Music", -80) to MUTE the current playing Audio (IT WORKS)

     AudioMixer.SetFloat("Music", -80);

- Then I load another scene... SceneManager.LoadScene("Scene2").
- Briefly, when loading the next scene, the Muted AUDIO plays again and then returns to mute
- On Scene 2 if I click to load SCENE 1 again the bug will happen, the Muted AUDIO will play briefly and then muted again.

I have a very simple attached project where this bug can be tested. Load Scene 1, click MUTE AUDIO and then click Go to Scene 2 (you will hear the audio briefly). Click "Back to Scene 1" and you will hear the audio again. Keep clicking "Go to Scene 2" and "Back to Scene 1" and you will hear the MUTED audio play several times.

I have a repro project here - https://www.dropbox.com/s/3jm0h88npfjgush/AudioMixer Bug.zip?dl=0

I already sent a bug report - Case 1314069

Has anyone gone through something similar and found a solution?

 

It seems that is already a known bug and the fix is coming!

Unity Issue Tracker - Audio clips after switching scene when scene has Timeline audio playing (unity3d.com)