How to convert only missing WebP or AVIF files
After a full library has already been optimized, you usually do not want to regenerate every file again. Missing-only conversion focuses on the gaps found by the status database, which is useful after theme changes, custom size changes, interrupted queues or imported media.
How to run a missing-only workflow
- Build or refresh the image status database first.
- Review the missing formats and missing WordPress size totals.
- Choose the missing-only conversion task instead of a full rebuild.
- Let the background queue process the missing items.
- Refresh the dashboard totals after the queue finishes.
- Retry saved failures separately if any files still could not be generated.
