Freelance Windows acting up

Ever since the latest totalfinder update ( 1.5.19. ), when I click a folder in my desktop or let an application open up a folder, it is opened in a “freelance window”, rather than in a new tab inside the Visor. This happens as long as the folder is not already open inside visor.

Once this bug is triggered, it won’t go away until I go to the settings and enable Freelance Windows option and right away disable it again.

Reboot seems to trigger this bug every time.
I did also try to restart totalfinder to see if the bug would come back that way, but it didn’t.

This is apparently fixed in TotalFinder 1.5.22.