I added an audio track to my timeline. The binding points to an AudioSource that has the Output mixer set to a mixer group. However, the audio does not play through that mixer group, so I can't use the audio mixer at all with timeline. Other properties such as volume, pan, etc. seem to work. Am I missing something obvious? Freaking out a little bit because I assumed this would "just work". Using Unity 2018.3.0f2.