Use multicamera sequence editing

I have a multicamera shoot from last Thursday with five cameras and separate audio tracks. Assemble a multicamera sequence that syncs by waveform, keep the master camera as Angle 1, and make a working cut that starts with the wide two minutes in for context. Label each angle with camera ID and date, then scan for any audio drift longer than one second and flag those clips in the timeline.

Before I hand this multicam sequence to the director, make it obvious where coverage and reaction shots live. Surface camera names and lens (Wide, A, B, C, Handheld) in the clip names, put the best two reaction takes as markers at the top of the sequence, and create a tiny sub-sequence of the best five camera switches so the director can approve pacing in 60 seconds.

We just synced five cameras by waveform and the director approved the rough cut, but during playback Angle 3 drifts noticeably in a specific 30‑second section. I’m worried the waveform match failed because of a loud source or a phantom clap. I can’t tell if the audio on camera 3 is corrupt, the recorder lost frames, or our sync reference moved. What is the most likely cause and the shortest reliable fix that won’t require resyncing everything from scratch?

Across projects I keep rebuilding multicamera sequences: a shoot will sync fine, edits happen, then someone replaces a camera file or the audio reference gets renamed and everything drifts. It costs hours and makes me look sloppy. Which habit should I change first so these resyncs stop happening — file naming, where I store the sync master, or how I handle media replacement — and give one concrete daily routine to prevent this next shoot from requiring a rebuild.