Unable to sync Documents or Pictures folders from Desktop Client (Windows 10)

Nextcloud version: 18.0.3
Operating System and version: Ubuntu 16.04 LTS x64
Apache version: Apache 2.4.18
PHP version: 7.2.29
Client version: 2.6.4 stable - Win64 build 20200303
Client OS: Windows 10 x64 1903

After installing the Windows client and setting up sync, some folders sync and others fail with a specific error:
Unable to open or create the local sync database. Make sure you have write access in the sync folder.

Folders that sync:

Folders with sync error:

Is this the first time you’ve seen this error? Y

Steps to replicate it:

  1. Download the Windows client to a Windows 10 1903 x64 laptop (not sure if running in virtual makes any difference)
  2. Install the client
  3. Setup syncing of above folders
  4. All folders started empty on Nextcloud, except Photos that is already synced from mobile phone and had content ahead of testing

No Event Logs errors happen around the same time

  • I’ve tested installing as admin or as normal user
  • I’ve tested running as admin or as normal user
  • I’ve run a Procmon during a test sync and saw no relavent problems