WPMU DEV plugins are not updating.

When trying to update the plugins from Installed Plugins, seeing a message" update failed". When updating plugins from the WPMU DEV > plugins, error shows up that the plugin is running on the latest version. So far:
- All plugins where deactivated
- API key was reset
- The site's IP is not blacklisted
- Debug.log is not created
- Updating from the Dashboard - Updates says that the plugin was updated successfully, but is still running an old version