I'm having a weird little problem that I have trouble figuring out.
In a fresh install of EPi 6 with just a clean DB, the page tree in edit-mode has wrong mapping for the Workspace and WasteBasket pages.
They should be like this: http://localhost/siteUI/CMS/edit/wastebasketpage.aspx?id=2
But they are like this: http://localhost/siteUI/edit/wastebasketpage.aspx?id=2

This results in an ugly exception: "Directory '[my site root dir]\siteUI\edit' does not exist. Failed to start monitoring file changes"

To make things weirder, if I set the pageStartId to 1 or 2 (workspace or wastebasket) they are displayed fine when logging into edit mode, but they still give an exception if you use the edit-tree to navigate to them.

As far as I can see, all other parts of edit- and admin mode works just fine. I also did an install of the demo site, and the problem doesn't appear on that. Neither can I find any differences between the mappings in the configuration files from my site and the demo site.

I'm stumped, and any ideas would be greatly appreciated.