Hi,
Please try this,
download the file http://muse.adobe.com/assets/ftp2014fix.zip, unzip it, and save the contained file ftpPrefs.xml to the following location:
On Windows: %appdata%\Roaming\Adobe\Adobe Muse CC\2014.0 (You can type this in the Path bar at the top of the Windows Explorer window)
On Mac: ~/Library/Preferences/Adobe/Adobe Muse CC/2014.0 (You can type this in the Go To Folder dialog using Shift+Command+G)
Let me know if that works