Permission problems

Hi!

I have a very strange problem.
We use Rockstor with Active Directory.

As you see in the picture we enabled AD, Rockstor Succesfully joined to the Domain and get the Domain users information too. We got a Share name: “WORK”. Every domain user got they own folder in the WORK share. Every user have full permission in own folder. It’s work great. BUT: if i copy a file into a user folder then the copied file’s owner will be the root (me) and the user cannot delete/write into it. If i enable Inheritate in the upper folder, then they got permission to write/delete a file, BUT tomorrow the permission perish. So tomorrow i need to change the permission again… Every day the permission gone…

What did we wrong, can you help us?

Thank!

Can anyone help us in this problem?