Total finder big sur bug, am i the only one who have this mistake?

Hi, i installed total finder on big sur 11.0.1 and then 11.1, i have a big bug, when i close a window and open another one, the top on these disappear totaly, i can’t close the window cause the 3 buttons disappeared, i have to click twice on a folder or drive to get back the top on the window. Is it a known problem? thanks a lot