Permission errors

I am evaluating the trial version (2.7) and saw fairly major flaws in the permissions system.  I had two root folders created and all users had all permissions to those folder trees.  Then I created a third root folder and much of the functionality on the seconde root folder tree disapeared, such as not being able to download.  Any idea?

Note that a deny permission entry takes precedence over an allow entry.

Make sure that a group membership does not cause the deny permission.

If you are sure it's a flaw, let me know the exact steps to reproduce it. 

Hi,

I replied to the email you sent me as I needed to attach a copy of the Access database that stores the permissions settings.  Do you read email responses at that address?

Hi Mike,
I checked the problem and yes it is a bug, thank you for finding it out.

The bug effected only group permissions, the permissions of the last group was being inherited by other groups because of a small typo in the code.

I think the bug occured after a version update.

Anyway, the bug is fixed and I have sent you the updated file via email.