Hi,
great that it is not me and that I am not alone
And a slight addition to your post:
The Directory Browser window works as expected (no restrictions on navigation, / and .. being available etc.) as soon as your setwd() is /anywhere/ outside of $HOME.
So the feature request would be to drop the navigation restrictions (intended to be simplifications so users don't get lost in the filesysten ?!) regardless in what directory you are.
Yours,
Steffen