File manager (Filemin) direcotory restriction do not work


We have tested Filemin as it is available by default now.
We would like to deny access to some of the Directories that users can see/access but it do not work. Regardless of what we set in "Directories to deny" the set directories are shown and accessible.
Also we have tried to use "Only allow access to directories below." option and set only one directory but this also did not work.