I wouldn't think it would be a permissions issue, the folders it's monitoring is just in the Home folder of the user, in the movies section. How do you check the logs for any errors? Do you mean the activity section?
I am running it on a MacBook Pro 2011 and the other is a Mac mini 2008. A bit dated, yes I know but everything else works flawlessly when transferring files over (dropbox, Sync.com, etc. -- I know these run on different technologies but still). I am running Mojave on the MBP and the Mac mini is on Sierra. There are only a couple dozen files, and in one folder. The ram of the MBP is 6GB and the Mac mini is only running off of 2GB. That actually shocked me when I looked that up, I didn't know it was able to run on that little amount! I supposed that could be the issue (mixed with the older operating system), but I still feel like there may be something else going on as well.
I appreciate you responding so much to this thread by the way, thank you Andy+.