TotalFinder disappears

I first tried TotalFinder and bought it just now. Ever since I bought it, TotalFinder disappears when I click another application window. I have to click the Finder icon to make it re-appear. How can I prevent TotalFinder from disappearing into the dock?

Thanks for purchasing. This looks like your TotalFinder (or Finder) crashing and restarting.

Could you open Console.app -> User Reports and look for recent Finder_date_machine.crash files? There might be some recent crash which could tell us more. You can send it to support@binaryage.com if you are not comfortable sharing it here.

Last crash file is dated before the purchase of ToTalFinder.
I noticed TotalFinder slides into the dock. That doesn’t seem like a crash to me, does it?

Aha, so you enabled the Visor feature:
https://totalfinder.binaryage.com/visor

Please disable it in preferences. btw. I’ve seen a bug where disabling Visor won’t actually close Visor window, Finder restart was needed (force quit Finder via CMD+OPT+ESC and then launch /Applications/TotalFinder.app again).