I submitted a problem via the Help/Report, too. That (the reporting) had an error, about not being able to find version text, so I thought I'd report here with version info.
We've seen this on both machines we have tried to install on (both with slightly different paths). Doesn't fit with any known issues I've found.
Dev desktop build: windows, Mar 18, 2016
Import site from Acquia Cloud
Checkout progress: 100%
Registering site in Dev Desktop...
Could not create symlink D:\drupalSites\devdesktop\uvalaw-dev\docroot\sites\uvalaw.dev.dd. File already exists. Please check the path and delete it if it is not needed to free the path for the symlink