Freezes after file search completed

I updated to latest version yesterday 5.69.7865

It seemed to work fine. I cleaned the registry. I deleted some duplicate music files.

After a reboot, today, I ran duplicate finder again on a external HDD. After a long while (about 1TB data), it says:

"File search has completed"

But it is frozen. There are no buttons that respond. And the tab in my taskbar is glowing green, as if it is still busy.

I just turned off Windows AV and firewall, but no difference. I've wasted a half-day on multiple iterations of the process, so far; frustrating as fu@k.

I rebooted again, but got no love. I then uninstalled CCleaner, rebooted, and installed version 5.60.7307

It seems to work fine.

FYI, forgot to mention: I'm on W10 w/ all updates.

What version of Win10 with all updates? I.e.; Windows 10 v2004, Windows 10 v1909, or Windows 10 1903.

W10 Home v1909

18363.959

I see today that 2004 is available, so I'm gonna update.