Am on 1.11.8. If I click on the Finder symbol in the dock, the Finder seems to open (is show on the top) but shows no window. If I right click on “open new window” it works. If I open any other finder window (for example “Open download-folder in new window”) it works.
EDIT 1: And I just found out that it is not possible to switch (by clicking ctrl-tab) between open “tabs” (which now seems to be windows) anymore.
EDIT 2: Version 1.11.4 is the one that works properly.