I'm using Drivepool's latest version, 18.104.22.1682, on a Windows 10 Pro Version 2004 x64 pc.
For whatever reason I can't change the File Protection from Pool File Duplication to Folder Duplication. I also can't even change the duplication level from 2 to 1 or even 2 to 3.
I've uninstalled and reinstalled with no change in behavior. Drivepool still functions correctly. It shows up as a drive on my system. I can copy stuff into it and read stuff off of it.
When I try to change the file protection, by clicking on Change Duplication, it asks to either Disable, Change, or Cancel.