OVR Lip Sync with multiple audio sources in Unity

I am trying to set up a Ready Player Me avatar in Unity with Oculus lip sync to animate mouth movement. I have multiple audio sources for multiple audio clips because I want to be able to manually cycle through the audio clips one after another using the keyboard. However, 'OVR Lip Sync Context' seems to only work on one audio source whether I try to hold the audio sources on multiple game objects or the same one. I tried adding an 'OVR Lip Sync Context' script for each audio source but again only the first one will work (any audio sources after the first will play the audio with no animation). Does anybody know a way around this?