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.