[Sergio Aguero]

This is so frustrating that this problem is still a thing. So I made a multicam seq, place it on a timeline and audio track has no
waveforms. Frustratingly, I can sync the multicam seq USING AUDIO SYNC
with clips originally in multicam sequence. I’ve scoured the interwebs,
the youtubes, forums, you name it. Still haven’t found my answer, and
here we are. I guess I’ll resync the audio once more as a workaround, but if anybody finds an answer please be good soul

[Sergio Aguero]

I know this is far too late, but whoever stumbles on this google search option again, I solved this with luma key. This plus a combination of a track matte really allowed to control where I wanted my fractal noise to be.