[Bug]: Desktop client 3.13.2-x64 crashing on Windows 10 Pro 19045.4651 with null_pointer on cldapi.dll

[nthoms92]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Fresh install of NextCloud server/client. The client has never run successfully on this PC. The client will run for 30 seconds to a maximum of 2 minutes per my testing until it ultimately crashes. Windbg shows the below

MODULE_NAME: cldapi
IMAGE_NAME: cldapi.dll
FAILURE_BUCKET_ID: NULL_POINTER_WRITE_c0000005_cldapi.dll!IssueHsmControl

I have confirmed the PC doesn't have any other kind of Sync software running, and I have excluded the NextCloud client software/directory from my antivirus. I have attempted a reinstall of the software as well with no effect.

Prior to the crash, I do see it marking files for synchronization per expected operation.

Steps to reproduce

Install NextCloud client software
Run the software.
Wait for a few minutes
Software crashes.

Expected behavior

Expected software to remain running/stable after launch

Which files are affected by this bug

cldapi.dll, nextcloud.exe

Operating system

Windows

Which version of the operating system you are running.

Windows 10 Pro 19045.4651

Package

Appimage

Nextcloud Server version

29.0.3

Nextcloud Desktop Client version

3.13.2-x64

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

Updated from a minor version (ex. 3.4.2 to 3.4.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Enabled

Are you using an external user-backend?

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

Nextcloud Server logs

attached to zip in additional info.

Additional info

Next Cloud Crash.zip

I am unable to use any GUI features of the NextCloud client, and setting the debug logging through the cfg file results in explorer.exe freezing, a "blank" error popup, and no log written.

[nthoms92]

I figured it out. This was caused by a problem in the nextcloud files in %appdata%/local and/or %appdata%/roaming. Neither of which are removed on uninstall of the NextCloud application (that should be a bug). Due to something in one of those directories I was having this issue. I uninstalled the app, deleted both offending directories which once again are not removed by the client uninstall, then reinstalled. Its now working normally

[nthoms92]

Working normally. Caused by the app's uninstallation being incomplete and leaving garbage behind. App uninstall needs to be corrected to include %appdata% directories.

[nextcloudfan]

Had same problems, removed the mentioned folders after uninstall. Installed client again. Same problem.