The Basics
- Nextcloud Server version (e.g., 29.x.x):
33.02
- Operating system and version (e.g., Ubuntu 24.04):
Debian 11
- Web server and version (e.g, Apache 2.4.25):
Apache 2.4.66
- Reverse proxy and version _(e.g. nginx 1.27.2)
nginx1.26.3
- PHP version (e.g, 8.3):
8.3.17
- Is this the first time youāve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
After upgrading to 33
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Bare Metal installed in LXC on ProxMox
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Cloudflare
Summary of the issue you are facing:
I moved a large chunk of files into my NextCloud directory on mac with the Mac Client (version 33.0.2). Some files were very large (>100 gb). These seemed to not backup and the client kept skipping files. I could tell that the local directory on my mac was huge and not honoring the virtual files. I would kill the client and restart it and sometimes it picked up an extra file or two, but was still missing 100s.
I later noticed some core folders were duplicated on my mac, like Folder and then Folder 2. I thought that was strange and looked on the server itself and those folders were not showing. To test, I deleted one of the Folder 2 items on my mac, on the server, it deleted Folder. Realizing this was pretty screwed up, I killed the mac app. I have since noticed a lot of random files that were renamed to File Name 2.extension. Itās in the 1000s of files. I see >2k in one folder that end with 2.extension.
At this point, Iām not sure what to do. I think I need to figure out what files were renamed. I can run a find on the server and get lists of files that end like that, but some obviously should, so this is going to be a major pain. Secondly, I very much do not trust the mac client app at this point.
Any suggestions? Thanks!
Log entries
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
There are plenty of errors in the log, here is one:
{
"reqId": "<redacted>",
"level": 3,
"time": "2026-04-28T16:13:54+00:00",
"remoteAddr": "<redacted>",
"user": "<redacted>",
"app": "no app in context",
"method": "MOVE",
"url": "/remote.php/dav/files/<user>/<redacted-path>/<redacted-file>.flac",
"scriptName": "/remote.php",
"message": "Uncaught exception",
"userAgent": "Nextcloud Desktop Client 33.0.2 on macOS",
"version": "33.0.2.2",
"exception": {
"Exception": "Sabre\\DAV\\Exception",
"Message": "Failed to rename /<redacted-path>/<redacted-file>.flac to /<redacted-path>/<redacted-file> 2.flac",
"Code": 0,
"File": "/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Node.php",
"Line": 128,
"message": "Uncaught exception",
"CustomMessage": "Uncaught exception"
}
}
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"localhost",
"<redacted>",
"<redacted>"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "33.0.2.2",
"overwrite.cli.url": "http:\/\/localhost",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"memcache.local": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0
},
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\Redis",
"default_phone_region": "US",
"mail_smtpmode": "smtp",
"mail_smtpsecure": "ssl",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"theme": "",
"loglevel": 2,
"twofactor_enforced": "true",
"twofactor_enforced_groups": [],
"twofactor_enforced_excluded_groups": [],
"check_data_directory_permissions": false,
"maintenance_window_start": 8,
"app_install_overwrite": [
"maps"
],
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"updater.secret": "***REMOVED SENSITIVE VALUE***"
}
}
Please update to 33.0.3 (released yesterday) and enable debug level logging with this terminal (works only with 33.0.3+) command and check the logs for anything in regard to the renames:
