Question [Q] sm-n900 root problem !!!

Hello all...

I have rooted my galaxy note 3 (sm-n900) with cf auto root and after i rooted it successfully, I couldn,t give
Permissions for any rooted app like freedom or titanium backup ..It asks me for the permission to grant or deny
But when I choose grant, it keeps loading and then it tells me that you need root to access this app even though i had disabled knox by supersu and even I had the latest version of supersu... btw, I tried giving permissions with a different app and that didn't work as well

please help !!