When trying to setup sync for Firefox Nightly start menu, metro UI, app the spinner goes indefinitely with the message "Waiting on other device." My other PC simply adds the new PC trying to sync without any problems. It's also not taking my information using the recovery key, the fields just reset after entering everything. (Also, should I even have to setup sync twice for the same installation, once for desktop and once for start menu?)

Is this a know issue? Are there any known fixes?