When syncing double system sound, using markers, I am told to highlight both the video and its audio track, AND the sound track to be synced with them. I don't know how. In my effort, I can highlight one or the other, but not both. Ideas?
Had this problem also, using clap sync, where the audio channel connected with the video had no audio, it was on the track recorded with a separate device. Could not get all the involved tracks to highlight.
Add to this, the option for synchronize the clips was grayed out, as were most of the options in the clip menu. What's up with this? Thanks for your help!