Yes, The files I tested were in the Filebot folder of the user I am logged in as (Digger427). However I have looked that the thread that you referenced and that may be the issue I am having. I need to give snap access to the /mnt folder. I will re install and see if that clears up all my access ...

I installed FileBot as a snap in Linux Mint 18.3 and I have the same issues. FileBot does not have the permissions to view any folders on the system other than the /home folder. (or so it tells me) And yes, I did chmod -R the permissions on the /mnt folder to 777 just to be sure. and the program is ...