nextcloud / nextcloud/desktop

[Bug]: 4.0.0 Random files are deleted (Moved to Trash)

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#8,983 40 comments 2 reactions 1 assignee Claimed by @nilsding View on GitHub
bug os: :door: Windows
Dominant language
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Description

### ⚠️ Before submitting, please verify the following: ⚠️

- [x] This is a **bug**, not a question or a configuration issue.
- [x] This issue is **not** already reported on Github (I've searched it).
- [x] Nextcloud Server and Desktop Client are **up to date**. See [Server Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) and [Desktop Releases](https://nextcloud.com/install/#install-clients) for supported versions.
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/)

### Bug description

May be related or not to #8915 , but after discovery of this problem I've started checking Activity and noticed that a bunch of files and folders were deleted by me and other users, without any noticeable pattern.
Sometimes there were multiple per event, sometimes just one. Not very often, with a frequency ranging from several minutes to several hours.
I can unambiguously confirm, that I didn't do these deletions.
Fortunately, the files were found in Trash.
Can anyone check if they have this issue?

### Steps to reproduce

1. Update Nextcloud Client from 3.17.3 to 4.0.0 on Windows
2. Wait a couple of days
3. Check Activity app, look for deletions you didn't perform
4. Check Trash in Files app

### Expected behavior

This shouldn't happen

### Which files are affected by this bug

no pattern

### Operating system

Windows

### Which version of the operating system you are running.

Windows 10

### Package

Other

### Nextcloud Server version

32.0.1

### Nextcloud Desktop Client version

4.0.0

### Is this bug present after an update or on a fresh install?

Updated to a major version (ex. 3.16.3 to 3.17.0)

### Are you using the Nextcloud Server Encryption module?

Encryption is Enabled

### Are you using an external user-backend?

- [x] Default internal user-backend
- [ ] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Nextcloud Server logs

```shell

```

### Additional info

Package is installed with Chocolatey

Contributor guide

Open the contributing guide

Assessment

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