Problem
A proxy file is regenerated with a different frame rate from the original, causing timing offsets when the editor relinks the sequence.
Solution
Root Cause / Diagnostic:
Transcoding software configured to a fixed frame rate preset (e.g., forcing 24fps on 29.97fps or 60fps source media) creates duration mismatches and frame slippage that scramble cut points during offline-to-online relinking.
Actionable Fix:
1. Set Transcoder Frame Rate to "Source / Same as Source": Configure Adobe Media Encoder or DaVinci Resolve proxy presets to strictly maintain "Same as Source" for frame rate.
2. Audit Frame Rates in Media Inspector: Run automated checks on proxy metadata batches using MediaInfo to confirm frame rate values match camera raw master files exactly.
3. Reject and Re-encode Mismatched Proxies: If a frame rate discrepancy is detected, delete the corrupted proxy batch and re-encode using locked source frame rate profiles.
Pro Tip:
In DaVinci Resolve or Media Encoder presets, never hardcode 23.98 or 29.97 in the video export tab; always select "Match Source" so mixed frame rate projects stay in sync.
Transcoding software configured to a fixed frame rate preset (e.g., forcing 24fps on 29.97fps or 60fps source media) creates duration mismatches and frame slippage that scramble cut points during offline-to-online relinking.
Actionable Fix:
1. Set Transcoder Frame Rate to "Source / Same as Source": Configure Adobe Media Encoder or DaVinci Resolve proxy presets to strictly maintain "Same as Source" for frame rate.
2. Audit Frame Rates in Media Inspector: Run automated checks on proxy metadata batches using MediaInfo to confirm frame rate values match camera raw master files exactly.
3. Reject and Re-encode Mismatched Proxies: If a frame rate discrepancy is detected, delete the corrupted proxy batch and re-encode using locked source frame rate profiles.
Pro Tip:
In DaVinci Resolve or Media Encoder presets, never hardcode 23.98 or 29.97 in the video export tab; always select "Match Source" so mixed frame rate projects stay in sync.