I am finally migrating to immich and I am facing an issue with missing assets.
The first attempts were more successful in terms of completeness, but I was facing issues with the timeline as copying photos (from Synology Photos folder) changed timestamps. Now, several thousand photos seem to disappear - this situation seems to be reproducable as I have already retried it.
What I did: - Mount USB drive on NAS1 - Create a tar archive with tar -cf <Synology Photos folder> to an USP drive - Unarchive with tar -xf - Delete all @eaDir folders with thumbnails recursively - Mount USB drive to NAS2 - Upload photos with the following command: