[Bug]: `Socket operation timed out` error on sync

[evdcush]

⚠️ 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 and Desktop Releases for supported versions.
• [X] I agree to follow Nextcloud's Code of Conduct

Bug description

I have a directory synchronized through a Nextcloud via a provider (not my server).

There is a sub-directory, Projects/ which contains many (20~30) git projects. Whenever my Nextcloud desktop client attempts to synchronize Projects/ from the server, it invariably fails, stating:

Server replied with an error while reading directory "Projects/arbitrary_project/.git/refs/remotes": Socket operation timed out

The directory, including the Projects/ sub-directory, was fully synchronized until earlier this week, when all files were wiped somehow. I recovered the files from a machine that had not yet sync'd.

It always hits this error. I can remove the Projects/foo/ dir, and it will simply just time out on the next alphabetically next git dir in Projects/.

Steps to reproduce

1. Open client
2. Client checking for changes in remote...
3. Fail with error Socket operation timed out
4. "Force sync now"
5. Repeat from step 2 ...

Expected behavior

Synchronize.

Which files are affected by this bug

.git/logs

Operating system

Linux

Which version of the operating system you are running.

Ubuntu 22.04 6.5.0-35

Package

Distro package manager

Nextcloud Server version

26.0.13

Nextcloud Desktop Client version

3.13.0

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

Updated to a major version (ex. 3.3.6 to 3.4.0)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

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

Nextcloud Server logs

No response

Additional info

No response

[evdcush]

There was no "fix" here I found, unfortunately. I manually uploaded each subdir in Projects/, one-by-one. That "worked".