I have synced vid and aud in a sequence. One vid track ended up having a white dot on the screen due to a sensor issue apparently so i needed to track matte a spot removal using the track matte effect and spots for removal made as a title. I set this up in that sequence and it works fine.
Now that sequence was then multicammed into its own sequence. That multicam sequence was then placed into another sequence in the main project timeline. It is here where the track matting for the spot removal isnt working.