I use Windows 10 Pro, which I keep updated. I open a folder from a second installed SSD (D:\) that I keep all my documents, etc, on and pin a folder within it, using the "Pin To Quick Access" right-click function. This folder is not hidden and never has been.
I then launch Wise Folder Hider and enter the password. I have a folder on the (C:\)Desktop hidden. Under "Operation", I click on "Open". When the hidden folder opens, the quick-access pinned folders are removed from all folders.
Keeping the program open, I add the Quick Access folder again and it stays pined when I close and open and close, etc, the hidden folder. When I close the program, the pinned Quick Access folder stays.
It is only when I first open the hidden folder that the pinned quick-access folders are removed, every time the program is launched.
Please rectify that problem as I am rather impressed with this program.