Please help us by providing the following info. Before posting please also check the pinned "Known issues" threads and make sure that you're running the latest available version for your oC release: https://owncloud.org/changelog/
Steps to reproduce
1. delete a folder
2. recreate the same folder
As per your online manual the deleted folder should reappear including all subfolders and files.
Apparently, only some of the sub folders and files were recreated (two folders out of six). Activity log only shows a deletion and a recreation (i.e. not deletion or certain sub folders and/or files)
Operating system: WIN 10
Web server: fak.dk
PHP version: Unknown
ownCloud version (see ownCloud admin page): 8.2.3.
Updated from an older ownCloud or fresh install: fresh install.
Special configuration (external storage, external authentication, reverse proxy, server-side-encryption): N/A
ownCloud log (data/owncloud.log)
Please paste possible errors in the following code block, see https://central.owncloud.org/t/how-to-find-webserver-or-oc-logfile-enable-php-logfile/808 for more info
Integrity status for oC9+
Login as admin user into your ownCloud and access http://example.com/index.php/settings/integrity/failed paste the results here.