I tried searching the forum for this bug but didn't find anything (maybe I didn't try hard enough).
I'm using WeBuilder 7.1.
When I'm in the Project view of the File Explorer pane and I'm in a subdirectory and thus I change to another project, the File Explorer doesn't forget the subdirectory and looks for it in the new project, although it doesn't exist, and it remains in the treeview.
I thought you might find this interesting

Best regards,
gLes