Sync Issue when delete or cut/paste files (two truenas servers / Windows DFS)

Hello,

I am seeking help with an issue where:

I will backup my group policies from group policy management in Windows Server 2025. It will backup and sync fine to both truenas servers. Say it creates 54 folders.

But once I cut/paste or delete some or all of the folders to a new location issues occur. If I cut/paste some/all folders they will paste fine to new location but some or all of the folders that were cut will re-appear in the source folder probably within 10 seconds or some will still remain visible in the source folder. Similar issues occur if I delete folders instead of cut/paste.

I’m using DFS namespace which meaning I am accessing a central file explorer path such as \\domain.com\documents which will either be set to target \\truenas01\documents or \\truenas02\documents. When I watch all their folder locations, \\domain.com\documents and the current set target (say \\truenas01/documents) will update immediately together. \\truenas02\documents will have a delay which I think is normal because it needs to sync but then I think for some reason it may sync the changes a tiny bit from \\truenas01\documents but then it doesn’t fully and I think it may be re-synching the files left over in \\truenas02/documents back to \\truenas01/documents for some reason but i’m not 100% sure this is happening it’s just an observation from file explorer I see.

The same/similar issues occur if I just backup to the truenas server directly at say \\truenas01\documents instead of the DFS namespace \\domain.com\documents and delete or cut/paste directly from \\truenas01\documents.

I don’t remember having this issue before until maybe a month ago or so. It happens every time when I do backups for group policy now. But I haven’t really noticed it when doing my every day activities on my windows 11 domain joined pcs but I dont move many files at once very much at all usually- but the small amount of files i do move I havent had this issue.

My environment:

  • I have two truenas servers (25.10.1 - Goldeye)
  • syncthing setup on both truenas (**App Version:**2.0.14 Version: 2.0.2)
  • Each Truenas has syncthing storage configuration host path’s setting set to their own root dataset and is meant to keep the datasets in sync when I change/add/delete a file on a windows domain joined pc/server
  • This is in a Windows active directory domain (I am performing these tests while logged into my domain controller - Windows Server 2025 24H2)
  • I have DFS Namespace on Windows Server setup so that users go to one location in file explorer for file. It has two folder targets setup: the duplicate smb share from each truenas server - say \\truenas01\documents and \\truenas02\documents.

thank you

Here are sample logs I see from both truenas servers after test a bunch of times: (it’s very long so I also added full logs in documents)

  • truenas server log:

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{C15B48F1-5855-41A1-8C32-30AC73EBA30C}/DomainSysvol/GPO/Machine/Microsoft/Windows NT” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{F94BB174-24D7-4846-8211-FCF5C07F99EC}/DomainSysvol/GPO/User/Preferences” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{95374086-D491-4D5C-B687-31C93D621A7A}/DomainSysvol” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{3452174E-25F5-4C56-94F9-8561E3A7135A}/DomainSysvol/GPO/User/Scripts/Logon” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Updated file metadata (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive file.name=“public_space/documents/New folder/{9E609467-7755-4C0A-9085-D77B172CD2B7}/bkupInfo.xml” file.modified=“2026-02-12 05:59:51.5631115 -0800 PST” file.permissions=0000 file.size=608 file.blocksize=131072 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{C15B48F1-5855-41A1-8C32-30AC73EBA30C}/DomainSysvol/GPO/Machine/Preferences/Files” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{95374086-D491-4D5C-B687-31C93D621A7A}/DomainSysvol/GPO/Machine/Microsoft/Windows NT” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{A0D54622-1424-43F0-9CF8-E694AE6D4F7E}/DomainSysvol” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{BB968C02-461E-4253-94E9-A30D3FD1B5AD}/DomainSysvol/GPO/User/Scripts” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{A7A68E3A-15D5-43A6-9981-E54A77BA2E09}/DomainSysvol/GPO/User/Preferences” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{F0474209-E2B8-4C7D-9A1C-B070C2F4B558}/DomainSysvol/GPO/Machine/Scripts” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Updated file metadata (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive file.name=“public_space/documents/New folder/{30A06C8B-5610-40BE-ADCF-5CCC6E588DBF}/DomainSysvol/GPO/Machine/registry.pol” file.modified=“2020-07-10 15:52:01.5945247 -0700 PDT” file.permissions=0000 file.size=884 file.blocksize=131072 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{BB968C02-461E-4253-94E9-A30D3FD1B5AD}/DomainSysvol/GPO/User/Scripts/Logoff” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Updated file metadata (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive file.name=“public_space/documents/New folder/{3B5C26F0-0163-4242-AF5F-663B14D5FCBE}/DomainSysvol/GPO/Machine/registry.pol” file.modified=“2025-06-06 16:11:24.4331552 -0700 PDT” file.permissions=0000 file.size=1556 file.blocksize=131072 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{CCF7E142-9382-41E2-9BDF-D277F0FBF080}/DomainSysvol/GPO/Machine” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{775D5C72-6FFE-4223-A14A-306C78CC1D47}/DomainSysvol/GPO” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{F4E28D95-2A2B-4251-8C51-901BC237DC4C}/DomainSysvol/GPO/Machine/microsoft/windows nt” dir.permissions=0000 log.pkg=model)

2026-02-12 06:02:28 INF Created or updated directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“public_space/documents/New folder/{6ACAAC02-081F-4A78-9EAB-B07665EDE395}/DomainSysvol” dir.permissions=0000 log.pkg=model)

  • other truenas server log sample:

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$RPM1ZXB/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$R3X4NQU dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$RWHQTOF/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$R85370Q/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$RRQFBCB/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$RJ3J42F/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$R5UBNTC/DomainSysvol dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$RLVWLUP/DomainSysvol/GPO dir.permissions=0000 log.pkg=model)

2026-02-12 05:59:50 INF Created or updated directory (folder.label=data2 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=domain_user_profiles/admin/home/Downloads/$RECYCLE.BIN/$R5UBNTC dir.permissions=0000 log.pkg=model)

other truenas log.odt (59.2 KB)

truenas log.odt (73.8 KB)

I do see some errors like:

2026-02-12 06:02:35 INF Failed to delete directory (folder.label=data1 folder.id=zsuja-fvmu7 folder.type=sendreceive dir.name=“domain_user_profiles/admin/home/Downloads/New folder/{FFEC4AD5-4FA8-44CE-923D-B2BDEDCC6F3F}/DomainSysvol/GPO” dir.permissions=0000 error=“directory has been deleted on a remote device but is not empty; the contents are probably ignored on that remote device, but not locally” log.pkg=model)

But im not sure why or if its related. Permissions all look to be the same on all locations