Random file deletions

I have a problem with some files and directories being deleted at random.

This has been nagging me for quite a while now. I have attempted to get any hints from the server logs (self-hosted instance, debug log level) as well as the desktop client logs, but to no avail. I notice only new files disappearing, which I can restore on the server, but I don’t know if there are older files on this ~400 GB instance that are being deleted without me noticing, so it’s a bit unnerving.

Any help would be appreciated.

Retention, quota, and antivirus apps are not enabled.

Version info

Server:

$ ./occ status
  - installed: true
  - version: 32.0.5.0
  - versionstring: 32.0.5
  - edition:
  - maintenance: false
  - needsDbUpgrade: false
  - productname: Nextcloud
  - extendedSupport: false


Desktop client:

Nextcloud version 4.0.4 (build 35937)

System:

Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.6-200.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 22 × Intel® Core™ Ultra 7 155H
Memory: 64 GiB of RAM (62.3 GiB usable)
Graphics Processor 1: Intel® Arc
Graphics Processor 2: NVIDIA RTX 500 Ada Generation Laptop GPU

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