The Menu bar hides and shows as it should. The available options in the View Menu are: Sort Photos, Show Thumbnails, Show Toolbar, and Show In Toolbar. When I select "Show Toolbar," the bottom toolbar slides up as it should and is fully functional. Then when I select "Hide Toolbar," the bottom toolbar slides down out of sight as it should, but it does not come back up when I move the mouse to the bottom of the screen.
For what it's worth, in normal Finder view, when I hide the dock at the bottom of the screen, moving the mouse to the bottom of the screen
does make the
dock appear as it should.