Weird Log-in Issues

I have own cloud on server and added 12 dedicated users with dedicated passwords. However, the users are getting mixed up. i need to keep refreshing to get it right. what is that so?

ie; User A was able to access user B using login details of user A

Hi,

please fill out the issue template shown when creating a new thread in the https://central.owncloud.org/c/help/oc-server category.

This template is asking you to provide various information about your environment (ownCloud version, used user backend etc.) which are currently completely missing.