Permssion denied for users' directories

[Metsis]

Hello!

I just purchased FFS for my home Mac that has separate accounts for all family members and an admin account. I'm logged into the admin account (FFS installed using it). I'm trying to set up my filter rules:
- I've included all (*)
- left the default exclusions
- added exclusions for "*/OneDrive/*", "*/Applications/" and "*/Volumes/"

The idea is to leave out applications, external volumes (like the one where the backup will be made) and OneDrive folders out, but include all users' content. However, the comparison column gives an error "Error 13: permission denied [opendir]" for every user, including my normal account.

The source is Max running Mac OS X 10.10 Yosemite and the target is Seagate Personal Cloud NAS.

Any pointers for "backup on a multiuser computer" appreciated.