Using immich-go to upload my google takeout fails with an internal server error

[Duckle]

I'm trying to set up and get going with immich, and the install goes fine.

I have my google takeout in zip files, and a user-api key with all permissions.

All of this works fine, however immigh-go rather quickly (after ~10 GB if data) runs into an error 500.

Checking the server log from the truenas UI, I can see this is due to a permissions error, when immich is trying to copy a file.

[Nest] 22  - 01/05/2026, 10:02:24 AM   ERROR [Api:ErrorInterceptor~m4efv5f7] Unknown error: Error: EPERM: operation not permitted, copyfile '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/66/de/66de1127-26d4-435a-800f-0628803a8965.JPG.xmp' -> '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/82/5b/825ba53f-5e9c-456b-a96f-96b0ca3efc36.JPG.xmp'
2026-01-05 18:02:24.099069+00:00Error: EPERM: operation not permitted, copyfile '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/66/de/66de1127-26d4-435a-800f-0628803a8965.JPG.xmp' -> '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/82/5b/825ba53f-5e9c-456b-a96f-96b0ca3efc36.JPG.xmp'
2026-01-05 18:02:24.099097+00:00at async Object.copyFile (node:internal/fs/promises:621:10)
2026-01-05 18:02:24.099101+00:00at async AssetService.copySidecar (/usr/src/app/server/dist/services/asset.service.js:175:9)
2026-01-05 18:02:24.099104+00:00at async AssetService.copy (/usr/src/app/server/dist/services/asset.service.js:151:13)
2026-01-05 18:02:24.099112+00:00[Nest] 22  - 01/05/2026, 10:02:24 AM   ERROR [Api:ErrorInterceptor~hsepvkht] Unknown error: Error: EPERM: operation not permitted, copyfile '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/ce/59/ce594961-1e68-4a6e-927a-e24886a53a97.JPG.xmp' -> '/data/upload/ce291ead-c9e1-433e-ba3a-de52c06d51bb/b5/48/b5488a04-5297-4252-9b9e-736b12c696d7.JPG.xmp'

I have tried uninstalling immich and removing all folders associated with it, but this doesn't seem to help

I have tried disabling the SMB share for the photos folder, but that's also not helping.

Any idea where to look next for me?